Discovery responses must be served in the discovery period, what about supplemental responses? faq 4 years ago The duty to supplement under Fed. R. Civ. P. 26(e) continues after close of discovery. Related posts: Under the rule changes discovery responses must be served prior to the close of discovery, will that apply to cases pending on Jan. 14, 2017? What is the procedure for having an Interlocutory Attorney participate in the discovery conference? Do I need to file initial disclosures with TTAB? Can I amend my notice of opposition to add a joint opposer after the time period for filing a notice of opposition has expired?