Section
2502, Pub. L. 91–577, title II, § 92, Dec. 24, 1970, 84 Stat. 1553, related to priority contest. Section
2503, Pub. L. 91–577, title II, § 93, Dec. 24, 1970, 84 Stat. 1553; Pub. L. 96–574, § 18, Dec. 22, 1980, 94 Stat. 3351, related to effect of adverse final judgment or of nonaction.