Categories Glossary USPS Post author By faq Post date 2020-06-24 No Comments on USPS United States Postal Service Related posts: Express Mail Mailing Label (Patent) Letters Patent Patent Certificate of Mailing ← Use in Commerce → USPTO Leave a Reply Cancel replyYour email address will not be published. Required fields are marked *Comment Name * Email * Website Save my name, email, and website in this browser for the next time I comment.