Please include in your email your phone number, serial or registration number, and a screenshot of any error message you may have received. Instructions. Any person who adopts and uses a mark in Maryland may file in the Office of the Secretary of State an application for registration of the mark.Log in to access forms. Select the type of form listed below for direct links to TEAS and TEASi forms. Cancellation of registration. TO: Commissioner for Patents, P.O. Box 1450, Alexandria, VA 22313-1450. If you need assistance in completing the form, call 1-800-PTO-9199 and select option 2. Vi) Effect of Resignation or Withdrawal of Application for Admission. Registration can be canceled if it was obtained fraudulently or granted improperly, or if the mark has been abandoned, among other grounds. Our trademark attorney Maryland has over 17 years representing clients for all trademark matters before the USPTO. 1-855-549-9900.