Copies of the specifications and drawings of foreign letters patent, or applications for foreign letters patent, and copies of excerpts of the official journals and other official publications of foreign patent offices belonging to the United States Patent and Trademark Office, certified in the manner provided by section 1744 of this title are prima facie evidence of their contents and of the dates indicated on their face.
(June 25, 1948, ch. 646, 62 Stat. 948, § 1746; renumbered § 1745, May 24, 1949, ch. 139, § 92(e), 63 Stat. 103; Pub. L. 88–619, § 7(a), Oct. 3, 1964, 78 Stat. 996; amended Pub. L. 106–113, div. B, § 1000(a)(9) [title IV, § 4732(b)(16)], Nov. 29, 1999, 113 Stat. 1536, 1501A–585.)