37 CFR § 42.4 - Notice of trial.

---
identifier: "/us/cfr/t37/s42.4"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "37 CFR § 42.4 - Notice of trial."
title_number: 37
title_name: "Patents, Trademarks, and Copyrights"
section_number: "42.4"
section_name: "Notice of trial."
chapter_name: "UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE"
subchapter_number: "A"
subchapter_name: "GENERAL"
part_number: "42"
part_name: "TRIAL PRACTICE BEFORE THE PATENT TRIAL AND APPEAL BOARD"
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), 3, 6, 21, 23, 41, 134, 135, 143, 153, 311, 312, 314, 316, 318, 321-326, 328; Pub. L. 112-29, 125 Stat. 284; and Pub. L. 112-274, 126 Stat. 2456."
regulatory_source: "77 FR 48669, Aug. 14, 2012, unless otherwise noted."
cfr_part: "42"
---


# 42.4 Notice of trial.

(a) *Institution of trial.* The Board institutes the trial on behalf of the Director.

(b) Notice of a trial will be sent to every party to the proceeding. The entry of the notice institutes the trial.

(c) The Board may authorize additional modes of notice, including:

(1) Sending notice to another address associated with the party, or

(2) Publishing the notice in the Official Gazette of the United States Patent and Trademark Office or the *Federal Register.*