MPEP § 2570 — Maintenance Fee Payment Status Requests
Ninth Edition, Revision 01.2024 · last revised R-08.2017
The Maintenance Fee Branch will respond to requests for the maintenance fee payment status of patents. Maintenance fee status information for a patent of interest can be obtained over the internet by entering the patent number and the corresponding application number in the appropriate spaces on the webpage available at https://fees.uspto.gov/ MaintenanceFees. In addition, maintenance fee status can be requested by telephone. Telephone status requests are limited to two patent numbers per telephone call. See MPEP § 1730 for the telephone number.