405.03(b)    Application of Limit: Sets of Interrogatories

The numerical limit specified in 37 C.F.R. § 2.120(d)  pertains to the total number of interrogatories that one party may serve on another party over the course of an entire proceeding, not just per set of interrogatories. Thus, if a party to a proceeding before the Board serves, over the course of the proceeding, two or more separate sets of interrogatories directed to the same party, the interrogatories in the separate sets would be added together for purposes of determining whether the numerical limit specified in the rule has been exceeded. [ Note 1.]

Accordingly, a party which is preparing a first set of interrogatories should reserve a portion of its allotted 75 interrogatories (counting subparts) to use for follow-up discovery, unless it is sure that it will not be serving follow-up interrogatories.

NOTES:

 1.   See Baron Phillippe De Rothschild S.A. v. S. Rothschild & Co., 16 USPQ2d 1466, 1467 (TTAB 1990).