Based on Title 35, U.S.C., 1946 ed., § 47 (R.S. 4898, amended (1) Mar. 3, 1897, ch. 391, § 5, 29 Stat. 93 [29 Stat. 693], (2) Feb. 18, 1922, ch. 58, § 6, 42 Stat. 391, (3) Aug. 18, 1941, ch. 370, 55 Stat. 634).

The first paragraph is new but is declaratory only. The second paragraph is the same as in the corresponding section of existing statute. The third paragraph is from the existing statute, a specific reference to another statute is omitted. The fourth paragraph is the same as the existing statute but language has been changed.

2012—Pub. L. 112–211 inserted “The Patent and Trademark Office shall maintain a register of interests in patents and applications for patents and shall record any document related thereto upon request, and may require a fee therefor.” at end of first par. and substituted “An interest that constitutes an assignment” for “An assignment” in fourth par.

1982—Pub. L. 97–247 inserted “, 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”.

1975—Pub. L. 93–596 substituted “Patent and Trademark Office” for “Patent Office”.

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

Amendment by Pub. L. 97–247 effective Aug. 27, 1982, see section 17(a) of Pub. L. 97–247, set out as a note under section 41 of this title.

Amendment by Pub. L. 93–596 effective Jan. 2, 1975, see section 4 of Pub. L. 93–596, set out as a note under section 1111 of Title 15, Commerce and Trade.