405.03(a) Description of Limit
37 C.F.R. § 2.120(d) Interrogatories. The total number of written interrogatories which a party may serve upon another party pursuant to Rule 33 of the Federal Rules of Civil Procedure, in a proceeding, shall not exceed seventy-five, counting subparts, except that the Trademark Trial and Appeal Board, in its discretion, may allow additional interrogatories upon motion therefor showing good cause, or upon stipulation of the parties, approved by the Board. A motion for leave to serve additional interrogatories must be filed and granted prior to the service of the proposed additional interrogatories and must be accompanied by a copy of the interrogatories, if any, which have already been served by the moving party, and by a copy of the interrogatories proposed to be served. * * * *
The total number of interrogatories which a party may serve on another party, in a proceeding, may not exceed 75, counting subparts, except that the Board may allow additional interrogatories on motion therefor showing good cause, or on stipulation of the parties. [ Note 1.] See TBMP § 519. Parties may also stipulate that the limit on interrogatories shall be fewer than 75. [ Note 2.]
NOTES:
1. See Baron Phillippe De Rothschild S.A. v. S. Rothschild & Co., 16 USPQ2d 1466, 1467 n.5 (TTAB 1990) ("good cause will generally be found only where a legitimate need for further discovery by means of interrogatories is shown . . . the fact that the additional interrogatories served by opposer may be relevant and narrowly drawn to a single issue is insufficient, in and of itself, to demonstrate good cause.").