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Fabio 76b8ec33a7 Legal corpus: the complete U.S. Code (59,740 sections, all 53 titles)
Ingested titles 12–51 and 54 from OLRC USLM XML @119-100 (the whole Code
now, uniform edition; Title 53 is reserved/empty). LegalText 11,221 ->
59,740; repo total 105,704 records. Deterministic (byte-identical rerun,
verified on Title 42's 8,356 sections); make check green. make
legal-us-code default now covers every title.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
2026-07-06 10:51:44 -04:00

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---
type: "LegalText"
title: "35 U.S.C. § 23"
description: "Testimony in Patent and Trademark Office cases"
jurisdiction: "us"
corpus: "united_states_code"
kind: "code_section"
title_number: 35
title_name: "PATENTS"
chapter_number: "2"
chapter_name: "PROCEEDINGS IN THE PATENT AND TRADEMARK OFFICE"
section: "23"
citation: "35 U.S.C. § 23"
status: "current"
release_point: "119-100"
release_date: "2026-06-26"
source: "official"
source_url: "https://uscode.house.gov/download/releasepoints/us/pl/119/100/xml_usc35@119-100.zip"
source_identifier: "/us/usc/t35/s23"
source_file: "data/legal/raw/us/code/title-35/usc35.xml"
source_hash: "130894056007fb582ed7940a34dd842e2ea5a630bc7252fbeb40ebfcd5919481"
raw_snapshot_hash: "736cab508592dcf50013a1aed5ab108f72fd8493e76afc46848cdc35da38bbe3"
text_hash: "3d45992693b0486367945488dccf576e90e6c596938883c2a454c4e4ee70da93"
retrieved_at: "2026-07-04"
confidence: "official"
tags: ["legal", "us-code"]
---
# 35 U.S.C. § 23 - Testimony in Patent and Trademark Office cases
## Text
The Director may establish rules for taking affidavits and depositions required in cases in the Patent and Trademark Office. Any officer authorized by law to take depositions to be used in the courts of the United States, or of the State where he resides, may take such affidavits and depositions.
(July 19, 1952, ch. 950, 66 Stat. 795; Pub. L. 93596, § 1, Jan. 2, 1975, 88 Stat. 1949; Pub. L. 106113, div. B, § 1000(a)(9) [title IV, § 4732(a)(10)(A)], Nov. 29, 1999, 113 Stat. 1536, 1501A582; Pub. L. 107273, div. C, title III, § 13206(b)(1)(B), Nov. 2, 2002, 116 Stat. 1906.)
## Notes
Historical and Revision NotesBased on Title 35, U.S.C., 1946 ed., § 53 (R.S. 4905). This section is placed in part 1 since it relates to trade-mark cases in the Patent Office as well as to patent cases. Language is changed.
Editorial Notes
Amendments2002—Pub. L. 107273 made technical correction to directory language of Pub. L. 106113. See 1999 Amendment note below. 1999—Pub. L. 106113, as amended by Pub. L. 107273, substituted “Director” for “Commissioner”. 1975—Pub. L. 93596 substituted “Patent and Trademark Office” for “Patent Office” in section catchline and text.
Statutory Notes and Related Subsidiaries
Effective Date of 1999 AmendmentAmendment by Pub. L. 106113 effective 4 months after Nov. 29, 1999, see section 1000(a)(9) [title IV, § 4731] of Pub. L. 106113, set out as a note under section 1 of this title.
Effective Date of 1975 AmendmentAmendment by Pub. L. 93596 effective Jan. 2, 1975, see section 4 of Pub. L. 93596, set out as a note under section 1111 of Title 15, Commerce and Trade.