TITLE 15 - US CODE - SUBCHAPTER I - THE PRINCIPAL REGISTER

15 USC 1051 - Application for registration; verification

(a) Application for use of trademark 

(1) The owner of a trademark used in commerce may request registration of its trademark on the principal register hereby established by paying the prescribed fee and filing in the Patent and Trademark Office an application and a verified statement, in such form as may be prescribed by the Director, and such number of specimens or facsimiles of the mark as used as may be required by the Director.
(2) The application shall include specification of the applicants domicile and citizenship, the date of the applicants first use of the mark, the date of the applicants first use of the mark in commerce, the goods in connection with which the mark is used, and a drawing of the mark.
(3) The statement shall be verified by the applicant and specify that

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(A) the person making the verification believes that he or she, or the juristic person in whose behalf he or she makes the verification, to be the owner of the mark sought to be registered;
(B) to the best of the verifiers knowledge and belief, the facts recited in the application are accurate;
(C) the mark is in use in commerce; and
(D) to the best of the verifiers knowledge and belief, no other person has the right to use such mark in commerce either in the identical form thereof or in such near resemblance thereto as to be likely, when used on or in connection with the goods of such other person, to cause confusion, or to cause mistake, or to deceive, except that, in the case of every application claiming concurrent use, the applicant shall
(i) state exceptions to the claim of exclusive use; and
(ii) shall[1] specify, to the extent of the verifiers knowledge
(I) any concurrent use by others;
(II) the goods on or in connection with which and the areas in which each concurrent use exists;
(III) the periods of each use; and
(IV) the goods and area for which the applicant desires registration.

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(4) The applicant shall comply with such rules or regulations as may be prescribed by the Director. The Director shall promulgate rules prescribing the requirements for the application and for obtaining a filing date herein.
(b) Application for bona fide intention to use trademark 

(1) A person who has a bona fide intention, under circumstances showing the good faith of such person, to use a trademark in commerce may request registration of its trademark on the principal register hereby established by paying the prescribed fee and filing in the Patent and Trademark Office an application and a verified statement, in such form as may be prescribed by the Director.
(2) The application shall include specification of the applicants domicile and citizenship, the goods in connection with which the applicant has a bona fide intention to use the mark, and a drawing of the mark.
(3) The statement shall be verified by the applicant and specify
(A) that the person making the verification believes that he or she, or the juristic person in whose behalf he or she makes the verification, to be entitled to use the mark in commerce;
(B) the applicants bona fide intention to use the mark in commerce;
(C) that, to the best of the verifiers knowledge and belief, the facts recited in the application are accurate; and
(D) that, to the best of the verifiers knowledge and belief, no other person has the right to use such mark in commerce either in the identical form thereof or in such near resemblance thereto as to be likely, when used on or in connection with the goods of such other person, to cause confusion, or to cause mistake, or to deceive.

Except for applications filed pursuant to section 1126 of this title, no mark shall be registered until the applicant has met the requirements of subsections (c) and (d) of this section.

(4) The applicant shall comply with such rules or regulations as may be prescribed by the Director. The Director shall promulgate rules prescribing the requirements for the application and for obtaining a filing date herein.
(c) Amendment of application under subsection (b) to conform to requirements of subsection (a) 
At any time during examination of an application filed under subsection (b) of this section, an applicant who has made use of the mark in commerce may claim the benefits of such use for purposes of this chapter, by amending his or her application to bring it into conformity with the requirements of subsection (a) of this section.
(d) Verified statement that trademark is used in commerce 

(1) Within six months after the date on which the notice of allowance with respect to a mark is issued under section 1063 (b)(2) of this title to an applicant under subsection (b) of this section, the applicant shall file in the Patent and Trademark Office, together with such number of specimens or facsimiles of the mark as used in commerce as may be required by the Director and payment of the prescribed fee, a verified statement that the mark is in use in commerce and specifying the date of the applicants first use of the mark in commerce and those goods or services specified in the notice of allowance on or in connection with which the mark is used in commerce. Subject to examination and acceptance of the statement of use, the mark shall be registered in the Patent and Trademark Office, a certificate of registration shall be issued for those goods or services recited in the statement of use for which the mark is entitled to registration, and notice of registration shall be published in the Official Gazette of the Patent and Trademark Office. Such examination may include an examination of the factors set forth in subsections (a) through (e) of section 1052 of this title. The notice of registration shall specify the goods or services for which the mark is registered.
(2) The Director shall extend, for one additional 6-month period, the time for filing the statement of use under paragraph (1), upon written request of the applicant before the expiration of the 6-month period provided in paragraph (1). In addition to an extension under the preceding sentence, the Director may, upon a showing of good cause by the applicant, further extend the time for filing the statement of use under paragraph (1) for periods aggregating not more than 24 months, pursuant to written request of the applicant made before the expiration of the last extension granted under this paragraph. Any request for an extension under this paragraph shall be accompanied by a verified statement that the applicant has a continued bona fide intention to use the mark in commerce and specifying those goods or services identified in the notice of allowance on or in connection with which the applicant has a continued bona fide intention to use the mark in commerce. Any request for an extension under this paragraph shall be accompanied by payment of the prescribed fee. The Director shall issue regulations setting forth guidelines for determining what constitutes good cause for purposes of this paragraph.
(3) The Director shall notify any applicant who files a statement of use of the acceptance or refusal thereof and, if the statement of use is refused, the reasons for the refusal. An applicant may amend the statement of use.
(4) The failure to timely file a verified statement of use under paragraph (1) or an extension request under paragraph (2) shall result in abandonment of the application, unless it can be shown to the satisfaction of the Director that the delay in responding was unintentional, in which case the time for filing may be extended, but for a period not to exceed the period specified in paragraphs (1) and (2) for filing a statement of use.
(e) Designation of resident for service of process and notices 
If the applicant is not domiciled in the United States the applicant may designate, by a document filed in the United States Patent and Trademark Office, the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark. Such notices or process may be served upon the person so designated by leaving with that person or mailing to that person a copy thereof at the address specified in the last designation so filed. If the person so designated cannot be found at the address given in the last designation, or if the registrant does not designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark, such notices or process may be served on the Director.
[1] So in original. The word “shall” probably should not appear.

15 USC 1052 - Trademarks registrable on principal register; concurrent registration

No trademark by which the goods of the applicant may be distinguished from the goods of others shall be refused registration on the principal register on account of its nature unless it
(a) Consists of or comprises immoral, deceptive, or scandalous matter; or matter which may disparage or falsely suggest a connection with persons, living or dead, institutions, beliefs, or national symbols, or bring them into contempt, or disrepute; or a geographical indication which, when used on or in connection with wines or spirits, identifies a place other than the origin of the goods and is first used on or in connection with wines or spirits by the applicant on or after one year after the date on which the WTO Agreement (as defined in section 3501 (9) of title 19) enters into force with respect to the United States.
(b) Consists of or comprises the flag or coat of arms or other insignia of the United States, or of any State or municipality, or of any foreign nation, or any simulation thereof.
(c) Consists of or comprises a name, portrait, or signature identifying a particular living individual except by his written consent, or the name, signature, or portrait of a deceased President of the United States during the life of his widow, if any, except by the written consent of the widow.
(d) Consists of or comprises a mark which so resembles a mark registered in the Patent and Trademark Office, or a mark or trade name previously used in the United States by another and not abandoned, as to be likely, when used on or in connection with the goods of the applicant, to cause confusion, or to cause mistake, or to deceive: Provided, That if the Director determines that confusion, mistake, or deception is not likely to result from the continued use by more than one person of the same or similar marks under conditions and limitations as to the mode or place of use of the marks or the goods on or in connection with which such marks are used, concurrent registrations may be issued to such persons when they have become entitled to use such marks as a result of their concurrent lawful use in commerce prior to
(1)  the earliest of the filing dates of the applications pending or of any registration issued under this chapter;
(2)  July 5, 1947, in the case of registrations previously issued under the Act of March 3, 1881, or February 20, 1905, and continuing in full force and effect on that date; or
(3)  July 5, 1947, in the case of applications filed under the Act of February 20, 1905, and registered after July 5, 1947. Use prior to the filing date of any pending application or a registration shall not be required when the owner of such application or registration consents to the grant of a concurrent registration to the applicant. Concurrent registrations may also be issued by the Director when a court of competent jurisdiction has finally determined that more than one person is entitled to use the same or similar marks in commerce. In issuing concurrent registrations, the Director shall prescribe conditions and limitations as to the mode or place of use of the mark or the goods on or in connection with which such mark is registered to the respective persons.
(e) Consists of a mark which
(1)  when used on or in connection with the goods of the applicant is merely descriptive or deceptively misdescriptive of them,
(2)  when used on or in connection with the goods of the applicant is primarily geographically descriptive of them, except as indications of regional origin may be registrable under section 1054 of this title,
(3)  when used on or in connection with the goods of the applicant is primarily geographically deceptively misdescriptive of them,
(4)  is primarily merely a surname, or
(5)  comprises any matter that, as a whole, is functional.
(f) Except as expressly excluded in subsections (a), (b), (c), (d), (e)(3), and (e)(5) of this section, nothing in this chapter shall prevent the registration of a mark used by the applicant which has become distinctive of the applicants goods in commerce. The Director may accept as prima facie evidence that the mark has become distinctive, as used on or in connection with the applicants goods in commerce, proof of substantially exclusive and continuous use thereof as a mark by the applicant in commerce for the five years before the date on which the claim of distinctiveness is made. Nothing in this section shall prevent the registration of a mark which, when used on or in connection with the goods of the applicant, is primarily geographically deceptively misdescriptive of them, and which became distinctive of the applicants goods in commerce before December 8, 1993.

A mark which would be likely to cause dilution by blurring or dilution by tarnishment under section 1125 (c) of this title, may be refused registration only pursuant to a proceeding brought under section 1063 of this title. A registration for a mark which would be likely to cause dilution by blurring or dilution by tarnishment under section 1125 (c) of this title, may be canceled pursuant to a proceeding brought under either section 1064 of this title or section 1092 of this title.

15 USC 1053 - Service marks registrable

Subject to the provisions relating to the registration of trademarks, so far as they are applicable, service marks shall be registrable, in the same manner and with the same effect as are trademarks, and when registered they shall be entitled to the protection provided in this chapter in the case of trademarks. Applications and procedure under this section shall conform as nearly as practicable to those prescribed for the registration of trademarks.

15 USC 1054 - Collective marks and certification marks registrable

Subject to the provisions relating to the registration of trademarks, so far as they are applicable, collective and certification marks, including indications of regional origin, shall be registrable under this chapter, in the same manner and with the same effect as are trademarks, by persons, and nations, States, municipalities, and the like, exercising legitimate control over the use of the marks sought to be registered, even though not possessing an industrial or commercial establishment, and when registered they shall be entitled to the protection provided in this chapter in the case of trademarks, except in the case of certification marks when used so as to represent falsely that the owner or a user thereof makes or sells the goods or performs the services on or in connection with which such mark is used. Applications and procedure under this section shall conform as nearly as practicable to those prescribed for the registration of trademarks.

15 USC 1055 - Use by related companies affecting validity and registration

Where a registered mark or a mark sought to be registered is or may be used legitimately by related companies, such use shall inure to the benefit of the registrant or applicant for registration, and such use shall not affect the validity of such mark or of its registration, provided such mark is not used in such manner as to deceive the public. If first use of a mark by a person is controlled by the registrant or applicant for registration of the mark with respect to the nature and quality of the goods or services, such first use shall inure to the benefit of the registrant or applicant, as the case may be.

15 USC 1056 - Disclaimer of unregistrable matter

(a) Compulsory and voluntary disclaimers 
The Director may require the applicant to disclaim an unregistrable component of a mark otherwise registrable. An applicant may voluntarily disclaim a component of a mark sought to be registered.
(b) Prejudice of rights 
No disclaimer, including those made under subsection (e) of section 1057 of this title, shall prejudice or affect the applicants or registrants rights then existing or thereafter arising in the disclaimed matter, or his right of registration on another application if the disclaimed matter be or shall have become distinctive of his goods or services.

15 USC 1057 - Certificates of registration

(a) Issuance and form 
Certificates of registration of marks registered upon the principal register shall be issued in the name of the United States of America, under the seal of the Patent and Trademark Office, and shall be signed by the Director or have his signature placed thereon, and a record thereof shall be kept in the Patent and Trademark Office. The registration shall reproduce the mark, and state that the mark is registered on the principal register under this chapter, the date of the first use of the mark, the date of the first use of the mark in commerce, the particular goods or services for which it is registered, the number and date of the registration, the term thereof, the date on which the application for registration was received in the Patent and Trademark Office, and any conditions and limitations that may be imposed in the registration.
(b) Certificate as prima facie evidence 
A certificate of registration of a mark upon the principal register provided by this chapter shall be prima facie evidence of the validity of the registered mark and of the registration of the mark, of the registrants ownership of the mark, and of the registrants exclusive right to use the registered mark in commerce on or in connection with the goods or services specified in the certificate, subject to any conditions or limitations stated in the certificate.
(c) Application to register mark considered constructive use 
Contingent on the registration of a mark on the principal register provided by this chapter, the filing of the application to register such mark shall constitute constructive use of the mark, conferring a right of priority, nationwide in effect, on or in connection with the goods or services specified in the registration against any other person except for a person whose mark has not been abandoned and who, prior to such filing
(1) has used the mark;
(2) has filed an application to register the mark which is pending or has resulted in registration of the mark; or
(3) has filed a foreign application to register the mark on the basis of which he or she has acquired a right of priority, and timely files an application under section 1126 (d) of this title to register the mark which is pending or has resulted in registration of the mark.
(d) Issuance to assignee 
A certificate of registration of a mark may be issued to the assignee of the applicant, but the assignment must first be recorded in the Patent and Trademark Office. In case of change of ownership the Director shall, at the request of the owner and upon a proper showing and the payment of the prescribed fee, issue to such assignee a new certificate of registration of the said mark in the name of such assignee, and for the unexpired part of the original period.
(e) Surrender, cancellation, or amendment by registrant 
Upon application of the registrant the Director may permit any registration to be surrendered for cancellation, and upon cancellation appropriate entry shall be made in the records of the Patent and Trademark Office. Upon application of the registrant and payment of the prescribed fee, the Director for good cause may permit any registration to be amended or to be disclaimed in part: Provided, That the amendment or disclaimer does not alter materially the character of the mark. Appropriate entry shall be made in the records of the Patent and Trademark Office and upon the certificate of registration or, if said certificate is lost or destroyed, upon a certified copy thereof.
(f) Copies of Patent and Trademark Office records as evidence 
Copies of any records, books, papers, or drawings belonging to the Patent and Trademark Office relating to marks, and copies of registrations, when authenticated by the seal of the Patent and Trademark Office and certified by the Director, or in his name by an employee of the Office duly designated by the Director, shall be evidence in all cases wherein the originals would be evidence; and any person making application therefor and paying the prescribed fee shall have such copies.
(g) Correction of Patent and Trademark Office mistake 
Whenever a material mistake in a registration, incurred through the fault of the Patent and Trademark Office, is clearly disclosed by the records of the Office a certificate stating the fact and nature of such mistake, shall be issued without charge and recorded and a printed copy thereof shall be attached to each printed copy of the registration certificate and such corrected registration shall thereafter have the same effect as if the same had been originally issued in such corrected form, or in the discretion of the Director a new certificate of registration may be issued without charge. All certificates of correction heretofore issued in accordance with the rules of the Patent and Trademark Office and the registrations to which they are attached shall have the same force and effect as if such certificates and their issue had been specifically authorized by statute.
(h) Correction of applicant’s mistake 
Whenever a mistake has been made in a registration and a showing has been made that such mistake occurred in good faith through the fault of the applicant, the Director is authorized to issue a certificate of correction or, in his discretion, a new certificate upon the payment of the prescribed fee: Provided, That the correction does not involve such changes in the registration as to require republication of the mark.

15 USC 1058 - Duration

(a) In general 
Each registration shall remain in force for 10 years, except that the registration of any mark shall be canceled by the Director for failure to comply with the provisions of subsection (b) of this section, upon the expiration of the following time periods, as applicable:
(1) For registrations issued pursuant to the provisions of this chapter, at the end of 6 years following the date of registration.
(2) For registrations published under the provisions of section 1062 (c) of this title, at the end of 6 years following the date of publication under such section.
(3) For all registrations, at the end of each successive 10-year period following the date of registration.
(b) Affidavit of continuing use 
During the 1-year period immediately preceding the end of the applicable time period set forth in subsection (a) of this section, the owner of the registration shall pay the prescribed fee and file in the Patent and Trademark Office
(1) an affidavit setting forth those goods or services recited in the registration on or in connection with which the mark is in use in commerce and such number of specimens or facsimiles showing current use of the mark as may be required by the Director; or
(2) an affidavit setting forth those goods or services recited in the registration on or in connection with which the mark is not in use in commerce and showing that any such nonuse is due to special circumstances which excuse such nonuse and is not due to any intention to abandon the mark.
(c) Grace period for submissions; deficiency 

(1) The owner of the registration may make the submissions required under this section within a grace period of 6 months after the end of the applicable time period set forth in subsection (a) of this section. Such submission is required to be accompanied by a surcharge prescribed by the Director.
(2) If any submission filed under this section is deficient, the deficiency may be corrected after the statutory time period and within the time prescribed after notification of the deficiency. Such submission is required to be accompanied by a surcharge prescribed by the Director.
(d) Notice of affidavit requirement 
Special notice of the requirement for affidavits under this section shall be attached to each certificate of registration and notice of publication under section 1062 (c) of this title.
(e) Notification of acceptance or refusal of affidavits 
The Director shall notify any owner who files 1 of the affidavits required by this section of the Commissioners[1] acceptance or refusal thereof and, in the case of a refusal, the reasons therefor.
(f) Designation of resident for service of process and notices 
If the registrant is not domiciled in the United States, the registrant may designate, by a document filed in the United States Patent and Trademark Office, the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark. Such notices or process may be served upon the person so designated by leaving with that person or mailing to that person a copy thereof at the address specified in the last designation so filed. If the person so designated cannot be found at the address given in the last designation, or if the registrant does not designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark, such notices or process may be served on the Director.
[1] So in original. Probably should be “Director’s”.

15 USC 1059 - Renewal of registration

(a) Period of renewal; time for renewal 
Subject to the provisions of section 1058 of this title, each registration may be renewed for periods of 10 years at the end of each successive 10-year period following the date of registration upon payment of the prescribed fee and the filing of a written application, in such form as may be prescribed by the Director. Such application may be made at any time within 1 year before the end of each successive 10-year period for which the registration was issued or renewed, or it may be made within a grace period of 6 months after the end of each successive 10-year period, upon payment of a fee and surcharge prescribed therefor. If any application filed under this section is deficient, the deficiency may be corrected within the time prescribed after notification of the deficiency, upon payment of a surcharge prescribed therefor.
(b) Notification of refusal of renewal 
If the Director refuses to renew the registration, the Director shall notify the registrant of the Commissioners[1] refusal and the reasons therefor.
(c) Designation of resident for service of process and notices 
If the registrant is not domiciled in the United States the registrant may designate, by a document filed in the United States Patent and Trademark Office, the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark. Such notices or process may be served upon the person so designated by leaving with that person or mailing to that person a copy thereof at the address specified in the last designation so filed. If the person so designated cannot be found at the address given in the last designation, or if the registrant does not designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark, such notices or process may be served on the Director.
[1] So in original. Probably should be “Director’s”.

15 USC 1060 - Assignment

(a) 
(1) A registered mark or a mark for which an application to register has been filed shall be assignable with the good will of the business in which the mark is used, or with that part of the good will of the business connected with the use of and symbolized by the mark. Notwithstanding the preceding sentence, no application to register a mark under section 1051 (b) of this title shall be assignable prior to the filing of an amendment under section 1051 (c) of this title to bring the application into conformity with section 1051 (a) of this title or the filing of the verified statement of use under section 1051 (d) of this title, except for an assignment to a successor to the business of the applicant, or portion thereof, to which the mark pertains, if that business is ongoing and existing.
(2) In any assignment authorized by this section, it shall not be necessary to include the good will of the business connected with the use of and symbolized by any other mark used in the business or by the name or style under which the business is conducted.
(3) Assignments shall be by instruments in writing duly executed. Acknowledgment shall be prima facie evidence of the execution of an assignment, and when the prescribed information reporting the assignment is recorded in the United States Patent and Trademark Office, the record shall be prima facie evidence of execution.
(4) An assignment shall be void against any subsequent purchaser for valuable consideration without notice, unless the prescribed information reporting the assignment is recorded in the United States Patent and Trademark Office within 3 months after the date of the assignment or prior to the subsequent purchase.
(5) The United States Patent and Trademark Office shall maintain a record of information on assignments, in such form as may be prescribed by the Director.
(b) An assignee not domiciled in the United States may designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark. Such notices or process may be served upon the person so designated by leaving with that person or mailing to that person a copy thereof at the address specified in the last designation so filed. If the person so designated cannot be found at the address given in the last designation, or if the assignee does not designate by a document filed in the United States Patent and Trademark Office the name and address of a person resident in the United States on whom may be served notices or process in proceedings affecting the mark, such notices or process may be served upon the Director.

15 USC 1061 - Execution of acknowledgments and verifications

Acknowledgments and verifications required under this chapter may be made before any person within the United States authorized by law to administer oaths, or, when made in a foreign country, before any diplomatic or consular officer of the United States or before any official authorized to administer oaths in the foreign country concerned whose authority is proved by a certificate of a diplomatic or consular officer of the United States, or apostille of an official designated by a foreign country which, by treaty or convention, accords like effect to apostilles of designated officials in the United States, and shall be valid if they comply with the laws of the state or country where made.

15 USC 1062 - Publication

(a) Examination and publication 
Upon the filing of an application for registration and payment of the prescribed fee, the Director shall refer the application to the examiner in charge of the registration of marks, who shall cause an examination to be made and, if on such examination it shall appear that the applicant is entitled to registration, or would be entitled to registration upon the acceptance of the statement of use required by section 1051 (d) of this title, the Director shall cause the mark to be published in the Official Gazette of the Patent and Trademark Office: Provided, That in the case of an applicant claiming concurrent use, or in the case of an application to be placed in an interference as provided for in section 1066 of this title the mark, if otherwise registrable, may be published subject to the determination of the rights of the parties to such proceedings.
(b) Refusal of registration; amendment of application; abandonment 
If the applicant is found not entitled to registration, the examiner shall advise the applicant thereof and of the reasons therefor. The applicant shall have a period of six months in which to reply or amend his application, which shall then be reexamined. This procedure may be repeated until
(1)  the examiner finally refuses registration of the mark or
(2)  the applicant fails for a period of six months to reply or amend or appeal, whereupon the application shall be deemed to have been abandoned, unless it can be shown to the satisfaction of the Director that the delay in responding was unintentional, whereupon such time may be extended.
(c) Republication of marks registered under prior acts 
A registrant of a mark registered under the provisions of the Act of March 3, 1881, or the Act of February 20, 1905, may, at any time prior to the expiration of the registration thereof, upon the payment of the prescribed fee file with the Director an affidavit setting forth those goods stated in the registration on which said mark is in use in commerce and that the registrant claims the benefits of this chapter for said mark. The Director shall publish notice thereof with a reproduction of said mark in the Official Gazette, and notify the registrant of such publication and of the requirement for the affidavit of use or nonuse as provided for in subsection (b) of section 1058 of this title. Marks published under this subsection shall not be subject to the provisions of section 1063 of this title.

15 USC 1063 - Opposition to registration

(a) Any person who believes that he would be damaged by the registration of a mark upon the principal register, including the registration of any mark which would be likely to cause dilution by blurring or dilution by tarnishment under section 1125 (c) of this title, may, upon payment of the prescribed fee, file an opposition in the Patent and Trademark Office, stating the grounds therefor, within thirty days after the publication under subsection (a) of section 1062 of this title of the mark sought to be registered. Upon written request prior to the expiration of the thirty-day period, the time for filing opposition shall be extended for an additional thirty days, and further extensions of time for filing opposition may be granted by the Director for good cause when requested prior to the expiration of an extension. The Director shall notify the applicant of each extension of the time for filing opposition. An opposition may be amended under such conditions as may be prescribed by the Director.
(b) Unless registration is successfully opposed
(1) a mark entitled to registration on the principal register based on an application filed under section 1051 (a) of this title or pursuant to section 1126 of this title shall be registered in the Patent and Trademark Office, a certificate of registration shall be issued, and notice of the registration shall be published in the Official Gazette of the Patent and Trademark Office; or
(2) a notice of allowance shall be issued to the applicant if the applicant applied for registration under section 1051 (b) of this title.

15 USC 1064 - Cancellation of registration

A petition to cancel a registration of a mark, stating the grounds relied upon, may, upon payment of the prescribed fee, be filed as follows by any person who believes that he is or will be damaged, including as a result of a likelihood of dilution by blurring or dilution by tarnishment under section 1125 (c) of this title, by the registration of a mark on the principal register established by this chapter, or under the Act of March 3, 1881, or the Act of February 20, 1905:
(1) Within five years from the date of the registration of the mark under this chapter.
(2) Within five years from the date of publication under section 1062 (c) of this title of a mark registered under the Act of March 3, 1881, or the Act of February 20, 1905.
(3) At any time if the registered mark becomes the generic name for the goods or services, or a portion thereof, for which it is registered, or is functional, or has been abandoned, or its registration was obtained fraudulently or contrary to the provisions of section 1054 of this title or of subsection (a), (b), or (c) of section 1052 of this title for a registration under this chapter, or contrary to similar prohibitory provisions of such prior Acts for a registration under such Acts, or if the registered mark is being used by, or with the permission of, the registrant so as to misrepresent the source of the goods or services on or in connection with which the mark is used. If the registered mark becomes the generic name for less than all of the goods or services for which it is registered, a petition to cancel the registration for only those goods or services may be filed. A registered mark shall not be deemed to be the generic name of goods or services solely because such mark is also used as a name of or to identify a unique product or service. The primary significance of the registered mark to the relevant public rather than purchaser motivation shall be the test for determining whether the registered mark has become the generic name of goods or services on or in connection with which it has been used.
(4) At any time if the mark is registered under the Act of March 3, 1881, or the Act of February 20, 1905, and has not been published under the provisions of subsection (c) of section 1062 of this title.
(5) At any time in the case of a certification mark on the ground that the registrant
(A)  does not control, or is not able legitimately to exercise control over, the use of such mark, or
(B)  engages in the production or marketing of any goods or services to which the certification mark is applied, or
(C)  permits the use of the certification mark for purposes other than to certify, or
(D)  discriminately refuses to certify or to continue to certify the goods or services of any person who maintains the standards or conditions which such mark certifies:

Provided, That the Federal Trade Commission may apply to cancel on the grounds specified in paragraphs (3) and (5) of this section any mark registered on the principal register established by this chapter, and the prescribed fee shall not be required. Nothing in paragraph (5) shall be deemed to prohibit the registrant from using its certification mark in advertising or promoting recognition of the certification program or of the goods or services meeting the certification standards of the registrant. Such uses of the certification mark shall not be grounds for cancellation under paragraph (5), so long as the registrant does not itself produce, manufacture, or sell any of the certified goods or services to which its identical certification mark is applied.

15 USC 1065 - Incontestability of right to use mark under certain conditions

Except on a ground for which application to cancel may be filed at any time under paragraphs (3) and (5) of section 1064 of this title, and except to the extent, if any, to which the use of a mark registered on the principal register infringes a valid right acquired under the law of any State or Territory by use of a mark or trade name continuing from a date prior to the date of registration under this chapter of such registered mark, the right of the registrant to use such registered mark in commerce for the goods or services on or in connection with which such registered mark has been in continuous use for five consecutive years subsequent to the date of such registration and is still in use in commerce, shall be incontestable: Provided, That
(1) there has been no final decision adverse to registrants claim of ownership of such mark for such goods or services, or to registrants right to register the same or to keep the same on the register; and
(2) there is no proceeding involving said rights pending in the Patent and Trademark Office or in a court and not finally disposed of; and
(3) an affidavit is filed with the Director within one year after the expiration of any such five-year period setting forth those goods or services stated in the registration on or in connection with which such mark has been in continuous use for such five consecutive years and is still in use in commerce, and other matters specified in paragraphs (1) and (2) of this section; and
(4) no incontestable right shall be acquired in a mark which is the generic name for the goods or services or a portion thereof, for which it is registered. Subject to the conditions above specified in this section, the incontestable right with reference to a mark registered under this chapter shall apply to a mark registered under the Act of March 3, 1881, or the Act of February 20, 1905, upon the filing of the required affidavit with the Director within one year after the expiration of any period of five consecutive years after the date of publication of a mark under the provisions of subsection (c) of section 1062 of this title. The Director shall notify any registrant who files the above-prescribed affidavit of the filing thereof.

15 USC 1066 - Interference; declaration by Director

Upon petition showing extraordinary circumstances, the Director may declare that an interference exists when application is made for the registration of a mark which so resembles a mark previously registered by another, or for the registration of which another has previously made application, as to be likely when used on or in connection with the goods or services of the applicant to cause confusion or mistake or to deceive. No interference shall be declared between an application and the registration of a mark the right to the use of which has become incontestable.

15 USC 1067 - Interference, opposition, and proceedings for concurrent use registration or for cancellation; notice; Trademark Trial and Appeal Board

(a) In every case of interference, opposition to registration, application to register as a lawful concurrent user, or application to cancel the registration of a mark, the Director shall give notice to all parties and shall direct a Trademark Trial and Appeal Board to determine and decide the respective rights of registration.
(b) The Trademark Trial and Appeal Board shall include the Director, Deputy[1] Director of the United States Patent and Trademark Office[2] the Commissioner for Patents, the Commissioner for Trademarks, and administrative trademark judges who are appointed by the Secretary of Commerce, in consultation with the Director.
(c) Authority of the Secretary.— 
The Secretary of Commerce may, in his or her discretion, deem the appointment of an administrative trademark judge who, before August 12, 2008, held office pursuant to an appointment by the Director to take effect on the date on which the Director initially appointed the administrative trademark judge.
(d) Defense to challenge of appointment.— 
It shall be a defense to a challenge to the appointment of an administrative trademark judge on the basis of the judges having been originally appointed by the Director that the administrative trademark judge so appointed was acting as a de facto officer.
[1] So in original. Probably should be preceded by “the”.
[2] So in original. Probably should be followed by a comma.

15 USC 1068 - Action of Director in interference, opposition, and proceedings for concurrent use registration or for cancellation

In such proceedings the Director may refuse to register the opposed mark, may cancel the registration, in whole or in part, may modify the application or registration by limiting the goods or services specified therein, may otherwise restrict or rectify with respect to the register the registration of a registered mark, may refuse to register any or all of several interfering marks, or may register the mark or marks for the person or persons entitled thereto, as the rights of the parties under this chapter may be established in the proceedings: Provided, That in the case of the registration of any mark based on concurrent use, the Director shall determine and fix the conditions and limitations provided for in subsection (d) of section 1052 of this title. However, no final judgment shall be entered in favor of an applicant under section 1051 (b) of this title before the mark is registered, if such applicant cannot prevail without establishing constructive use pursuant to section 1057 (c) of this title.

15 USC 1069 - Application of equitable principles in inter partes proceedings

In all inter partes proceedings equitable principles of laches, estoppel, and acquiescence, where applicable may be considered and applied.

15 USC 1070 - Appeals to Trademark Trial and Appeal Board from decisions of examiners

An appeal may be taken to the Trademark Trial and Appeal Board from any final decision of the examiner in charge of the registration of marks upon the payment of the prescribed fee.

15 USC 1071 - Appeal to courts

(a) Persons entitled to appeal; United States Court of Appeals for the Federal Circuit; waiver of civil action; election of civil action by adverse party; procedure 

(1) An applicant for registration of a mark, party to an interference proceeding, party to an opposition proceeding, party to an application to register as a lawful concurrent user, party to a cancellation proceeding, a registrant who has filed an affidavit as provided in section 1058 of this title, or an applicant for renewal, who is dissatisfied with the decision of the Director or Trademark Trial and Appeal Board, may appeal to the United States Court of Appeals for the Federal Circuit thereby waiving his right to proceed under subsection (b) of this section: Provided, That such appeal shall be dismissed if any adverse party to the proceeding, other than the Director, shall, within twenty days after the appellant has filed notice of appeal according to paragraph (2) of this subsection, files notice with the Director that he elects to have all further proceedings conducted as provided in subsection (b) of this section. Thereupon the appellant shall have thirty days thereafter within which to file a civil action under subsection (b) of this section, in default of which the decision appealed from shall govern the further proceedings in the case.
(2) When an appeal is taken to the United States Court of Appeals for the Federal Circuit, the appellant shall file in the Patent and Trademark Office a written notice of appeal directed to the Director, within such time after the date of the decision from which the appeal is taken as the Director prescribes, but in no case less than 60 days after that date.
(3) The Director shall transmit to the United States Court of Appeals for the Federal Circuit a certified list of the documents comprising the record in the Patent and Trademark Office. The court may request that the Director forward the original or certified copies of such documents during pendency of the appeal. In an ex parte case, the Director shall submit to that court a brief explaining the grounds for the decision of the Patent and Trademark Office, addressing all the issues involved in the appeal. The court shall, before hearing an appeal, give notice of the time and place of the hearing to the Director and the parties in the appeal.
(4) The United States Court of Appeals for the Federal Circuit shall review the decision from which the appeal is taken on the record before the Patent and Trademark Office. Upon its determination the court shall issue its mandate and opinion to the Director, which shall be entered of record in the Patent and Trademark Office and shall govern the further proceedings in the case. However, no final judgment shall be entered in favor of an applicant under section 1051 (b) of this title before the mark is registered, if such applicant cannot prevail without establishing constructive use pursuant to section 1057 (c) of this title.
(b) Civil action; persons entitled to; jurisdiction of court; status of Director; procedure 

(1) Whenever a person authorized by subsection (a) of this section to appeal to the United States Court of Appeals for the Federal Circuit is dissatisfied with the decision of the Director or Trademark Trial and Appeal Board, said person may, unless appeal has been taken to said United States Court of Appeals for the Federal Circuit, have remedy by a civil action if commenced within such time after such decision, not less than sixty days, as the Director appoints or as provided in subsection (a) of this section. The court may adjudge that an applicant is entitled to a registration upon the application involved, that a registration involved should be canceled, or such other matter as the issues in the proceeding require, as the facts in the case may appear. Such adjudication shall authorize the Director to take any necessary action, upon compliance with the requirements of law. However, no final judgment shall be entered in favor of an applicant under section 1051 (b) of this title before the mark is registered, if such applicant cannot prevail without establishing constructive use pursuant to section 1057 (c) of this title.
(2) The Director shall not be made a party to an inter partes proceeding under this subsection, but he shall be notified of the filing of the complaint by the clerk of the court in which it is filed and shall have the right to intervene in the action.
(3) In any case where there is no adverse party, a copy of the complaint shall be served on the Director, and, unless the court finds the expenses to be unreasonable, all the expenses of the proceeding shall be paid by the party bringing the case, whether the final decision is in favor of such party or not. In suits brought hereunder, the record in the Patent and Trademark Office shall be admitted on motion of any party, upon such terms and conditions as to costs, expenses, and the further cross-examination of the witnesses as the court imposes, without prejudice to the right of any party to take further testimony. The testimony and exhibits of the record in the Patent and Trademark Office, when admitted, shall have the same effect as if originally taken and produced in the suit.
(4) Where there is an adverse party, such suit may be instituted against the party in interest as shown by the records of the Patent and Trademark Office at the time of the decision complained of, but any party in interest may become a party to the action. If there be adverse parties residing in a plurality of districts not embraced within the same State, or an adverse party residing in a foreign country, the United States District Court for the District of Columbia shall have jurisdiction and may issue summons against the adverse parties directed to the marshal of any district in which any adverse party resides. Summons against adverse parties residing in foreign countries may be served by publication or otherwise as the court directs.

15 USC 1072 - Registration as constructive notice of claim of ownership

Registration of a mark on the principal register provided by this chapter or under the Act of March 3, 1881, or the Act of February 20, 1905, shall be constructive notice of the registrants claim of ownership thereof.