37 CFR § 1.312 - Amendments after allowance.

---
identifier: "/us/cfr/t37/s1.312"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 1.312 - Amendments after allowance."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "1.312"
section_name: "Amendments after allowance."
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: "2026-03-24"
last_updated: "2026-03-24"
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"
---


# 1.312 Amendments after allowance.

No amendment may be made as a matter of right in an application after the mailing of the notice of allowance. Any amendment filed pursuant to this section must be filed before or with the payment of the issue fee, and may be entered on the recommendation of the primary examiner, approved by the Director, without withdrawing the application from issue.

[65 FR 14873, Mar. 20, 2000]