A prior section 151, act July 19, 1952, ch. 950, 66 Stat. 803; Pub. L. 89–83, § 4, July 24, 1965, 79 Stat. 260; Pub. L. 93–601, § 3, Jan. 2, 1975, 88 Stat. 1956; Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4732(a)(10)(A)], Nov. 29, 1999, 113 Stat. 1536, 1501A–582; Pub. L. 107–273, div. C, title III, § 13206(b)(1)(B), Nov. 2, 2002, 116 Stat. 1906, related to issue of patent, prior to repeal by Pub. L. 112–211, title II, § 202(b)(6), Dec. 18, 2012, 126 Stat. 1536.

Section effective on the date that is 1 year after Dec. 18, 2012, applicable to patents issued before, on, or after that date and patent applications pending on or filed after that date, and not effective with respect to patents in litigation commenced before that date, see section 203 of Pub. L. 112–211, set out as a note under section 27 of this title.