37 CFR 42.23: Oppositions and replies
Taken from the Ninth Edition of the MPEP, Revision 10.2019, Last Revised in June 2020
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42.23 Oppositions and replies.
- (a) Oppositions and replies must comply with the content requirements for motions and, if the paper to which the opposition or reply is responding contains a statement of material fact, must include a listing of facts that are admitted, denied, or cannot be admitted or denied. Any material fact not specifically denied may be considered admitted.
- (b) All arguments for the relief requested in a motion must be made in the motion. A reply may only respond to arguments raised in the corresponding opposition, patent owner preliminary response, or patent owner response.
[Added, 77 FR 48612, Aug. 14, 2012, effective Sept. 16, 2012; para. (a) first sentence revised, 80 FR 28561, May 19, 2015, effective May 19, 2015; para. (b) revised, 81 FR 18750, Apr. 1, 2016, effective May 2, 2016]