How can I file a petition for delayed payment of maintenance fees?

To file a petition for delayed payment of maintenance fees, follow these steps according to MPEP 2590: Use form PTO/SB/66, available on the USPTO forms website. Mark the front page of the communication “Attention: Office of Petitions”. Address the petition to:Mail Stop PetitionCommissioner for PatentsP.O. Box 1450Alexandria, Virginia 22313-1450 Include the required maintenance fee, petition…

Read More