2570 Maintenance Fee Payment Status Requests [R-7]
The Maintenance Fee Branch will respond to requests for the maintenance fee payment status of patents. Maintenance fee status can be requested by telephone. Telephone status requests are limited to two patent numbers per telephone call. In addition, maintenance fee status information is available over the Internet at www.uspto.gov. At the top of the site, click on the “Site Index” link, click on “M,” and then click on the “Maintenance ** > Fee Branch < ” link for additional information. See MPEP § 1730 for the telephone number.