Express Mail Mailing Label

Patent correspondence delivered to the USPTO via the "Express Mail Post Office to Addressee" service of the United States Postal Service (USPS) which is considered filed in the Office on the date of deposit with the USPS, shown by the "date-in" on the "Express Mail" mailing label.

Source: U.S. Patent and Trademark Office.


The filing date for Trademark documents is not the same as for patent documents.

Source: U.S. Patent and Trademark Office.