When are depositions generally filed with the TTAB?

Depositions are typically not filed with the Trademark Trial and Appeal Board (TTAB) unless they serve a specific function in the context of a proceeding. The correct choice reflects that depositions are generally used as a method of obtaining testimony from witnesses during the discovery phase and are usually only submitted as evidence if they have not been presented through other means. This indicates that the typical practice allows parties to rely on depositions as witnesses' testimonies during a hearing, thus reducing the need for formal filing.

This approach is efficient and aligns with the TTAB's procedural rules, which prioritize streamlined proceedings. In instances where Depositions are submitted as testimony, the formal filing is usually unnecessary, reinforcing the notion that their primary use is to gather and present evidence rather than merely being a procedural requirement.