37 CFR § 11.42 - Service of papers.
---
identifier: "/us/cfr/t37/s11.42"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 11.42 - Service of papers."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "11.42"
section_name: "Service of papers."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "11"
part_name: "REPRESENTATION OF OTHERS BEFORE THE UNITED STATES PATENT AND TRADEMARK OFFICE"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "5 U.S.C. 500; 15 U.S.C. 1123; 35 U.S.C. 2(b)(2), 32, 41; Sec. 1, Pub. L. 113-227, 128 Stat. 2114."
regulatory_source: "69 FR 35452, June 24, 2004, unless otherwise noted."
cfr_part: "11"
---
# 11.42 Service of papers.
(a) All papers other than a complaint shall be served on a respondent who is represented by an attorney by:
(1) Delivering a copy of the paper to the office of the attorney; or
(2) Mailing a copy of the paper by first-class mail, Priority Mail Express®, or other delivery service to the attorney at the address provided by the attorney under § 11.40(a)(1); or
(3) Any other method mutually agreeable to the attorney and a representative for the OED Director.
(b) All papers other than a complaint shall be served on a respondent who is not represented by an attorney by:
(1) Delivering a copy of the paper to the respondent; or
(2) Mailing a copy of the paper by first-class mail, Priority Mail Express®, or other delivery service to the respondent at the address to which a complaint may be served or such other address as may be designated in writing by the respondent; or
(3) Any other method mutually agreeable to the respondent and a representative for the OED Director.
(c) A respondent shall serve on the representative for the OED Director one copy of each paper filed with the hearing officer or the OED Director. A paper may be served on the representative for the OED Director by:
(1) Delivering a copy of the paper to the representative; or
(2) Mailing a copy of the paper by first-class mail, Priority Mail Express®, or other delivery service to an address designated in writing by the representative; or
(3) Any other method mutually agreeable to the respondent and the representative.
(d) Each paper filed in a disciplinary proceeding shall contain therein a certificate of service indicating:
(1) The date on which service was made; and
(2) The method by which service was made.
(e) The hearing officer or the USPTO Director may require that a paper be served by hand or by Priority Mail Express®.
(f) Service by mail is completed when the paper mailed in the United States is placed into the custody of the U.S. Postal Service.
[79 FR 63042, Oct. 22, 2014]