{"data":{"id":"us/37-cfr-220.4","jurisdiction":"us","citation":"37 CFR 220.4","heading":"Timing.","body":"When the start or end date for calculating any deadline set forth in this subchapter falls on a weekend or a Federal holiday, the start or end date shall be extended to the next Federal workday. Any document subject to a deadline must be either submitted to the Board's electronic filing system (eCCB) by 11:59 p.m. Eastern Time on the date of the deadline or dispatched by the date of the deadline.","path":["Title 37—Patents, Trademarks, and Copyrights","CHAPTER II—U.S. COPYRIGHT OFFICE, LIBRARY OF CONGRESS","SUBCHAPTER B—COPYRIGHT CLAIMS BOARD AND PROCEDURES","PART 220—GENERAL PROVISIONS"],"source_url":"https://www.ecfr.gov/api/versioner/v1/full/2026-08-25/title-37.xml","current_through":"2026-08-25","vintage":"","retrieved_at":"2026-08-27T02:25:45Z","sha256":"12c1a8f4613881816382a99e91dcf47b4ab75ad8ed83928c10c5125e12674040","source_id":"us-cfr","stale":true,"prev":"us/37-cfr-220.3","next":"us/37-cfr-220.5"},"notice":"GroundRules: Original legal text. Not legal advice."}