37 CFR § 1.171 - Application for reissue.

---
identifier: "/us/cfr/t37/s1.171"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 1.171 - Application for reissue."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "1.171"
section_name: "Application for reissue."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "1"
part_name: "RULES OF PRACTICE IN PATENT CASES"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "35 U.S.C. 2(b)(2), unless otherwise noted."
regulatory_source: "24 FR 10332, Dec. 22, 1959, unless otherwise noted."
cfr_part: "1"
---


# 1.171 Application for reissue.

An application for reissue must contain the same parts required for an application for an original patent, complying with all the rules relating thereto except as otherwise provided, and in addition, must comply with the requirements of the rules relating to reissue applications.

[62 FR 53196, Oct. 10, 1997]