When parties are attempting to negotiate an amicable resolution to a trade mark dispute that is the subject of a Notice of Opposition before the USPTO's Trademark Trial and Appeal Board (TTAB), they sometimes hold off on seeking discovery or taking testimony – which can be both time consuming and expensive – in the expectation that they will be able to finalise an appropriate settlement agreement. The parties should, however, be very careful to ensure that ongoing settlement negotiations do not cause them to ignore or miss any filing deadlines, as failure to make certain filings by the prescribed deadlines can result in missed opportunities to protect a valuable trade mark.