---
kind: "section"
citation: "37 C.F.R. § 42.25"
title: "37"
number: "42.25"
heading: "Default filing times."
url: "https://uscodex.org/cfr/37/42.25"
---

# §42.25. Default filing times.

- (a) A motion may only be filed according to a schedule set by the Board. The default times for acting are:
  - (1) An opposition is due one month after service of the motion; and
  - (2) **A reply is due one month after service of the opposition.**
- (b) **A party should seek relief promptly after the need for relief is identified.** Delay in seeking relief may justify a denial of relief sought.

## Notes

### Authority

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.

### Source

Source: 77 FR 48669, Aug. 14, 2012, unless otherwise noted.