611 Place

611 Place refers to the mailing address of the U.S. Patent and Trademark Office (USPTO). All mail intended for the USPTO, including patent and trademark applications, renewals, maintenance fees, and other official correspondence, should be sent to this address.

The full mailing address is:

Director of the United States Patent and Trademark Office 611 Place Alexandria, VA 22314

Using this address ensures that documents are properly routed to the relevant departments within the USPTO. The "Director of the United States Patent and Trademark Office" portion of the address is crucial, as it designates the intended recipient despite the generic nature of the "611 Place" designation. Prior to a move to Alexandria, the USPTO was located elsewhere; therefore, specifying "611 Place" indicates the current mailing address. Submitting correspondence to an incorrect or outdated address may result in delays in processing, and potentially loss of important documents.