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 MoreWhat are the consequences of accepting delayed payment of maintenance fees?
When the USPTO accepts delayed payment of maintenance fees for an expired patent, there are specific consequences as outlined in MPEP 2590: “If the Director accepts payment of the maintenance fee upon petition, the patent shall be considered as not having expired, but will be subject to the conditions set forth in 35 U.S.C. 41(c)(2).”…
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