What is the mailing address for sending an invoice or ACH form?

Invoices should be mailed to:

Mail Stop 17
Director of the U.S. Patent and Trademark Office
P.O. Box 1450
Alexandria, VA 22313-1450

ACH forms should be mailed to:

ACH Coordinator
Mail Stop 17
Director of the U.S. Patent and Trademark Office
P.O. Box 1450
Alexandria, VA 22313-1450

see also ACH - Automated Clearing House