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37 CFR § 2.194 - Identification of trademark application or registration.

---
identifier: "/us/cfr/t37/s2.194"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 2.194 - Identification of trademark application or registration."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "2.194"
section_name: "Identification of trademark application or registration."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "2"
part_name: "RULES OF PRACTICE IN TRADEMARK CASES"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "15 U.S.C. 1113, 1123; 35 U.S.C. 2; sec. 10, Pub. L. 112-29, 125 Stat. 284; Pub. L. 116-260, 134 Stat. 1182, unless otherwise noted. Sec. 2.99 also issued under secs. 16, 17, 60 Stat. 434; 15 U.S.C. 1066, 1067."
regulatory_source: "30 FR 13193, Oct. 16, 1965, unless otherwise noted."
cfr_part: "2"
---

# 2.194 Identification of trademark application or registration.

(a) No correspondence relating to a trademark application should be filed prior to receipt of the application serial number.

(b) (1) A letter about a trademark application should identify the serial number, the name of the applicant, and the mark.

(2) A letter about a registered trademark should identify the registration number, the name of the registrant, and the mark.