If you cannot access a TEAS form preview or have any questions about this notice, please contact the Trademark Assistance Center (TAC) at 1-800-786-. The Trademark Trial and Appeal Board (TTAB) handles appeals involving applications to register marks, appeals from expungement or reexamination proceedings.This form should be used to register the use of a trademark or service mark in Ohio. STEP THREE: Fill out and submit a Patent Pro Bono Program application. What happens after I apply? Authorized patent offices of the region where the patent was filed examine the application. Take normal security precautions in the United States. LexisNexis users sign in here. Click here to login and begin conducting your legal research now. Discover how Barco can improve your business with impressive visualization and innovative collaboration solutions.