What is the correspondence address in a patent application?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-09 10 Rules 5 Related FAQs This page is an FAQ based on guidance from the Manual of Patent Examining Procedure. It is provided as guidance, with links to the ground truth sources. This is information only: it is not legal advice. The correspondence address in a patent application is the address where the United States Patent and Trademark Office (USPTO) will send all official communications regarding the application. According to 37 CFR 1.33(a) : “When filing an application, a correspondence address must be set forth in either an application data sheet (§ 1.76), or elsewhere, in a clearly identifiable manner, in any paper submitted with an application filing.” This address is crucial for ensuring that applicants receive all necessary information and notifications about their patent application. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Correspondence Address May Differ From Post Office Address MPEP 403 Permitted Correspondence Address Required for Notification MPEP 403 Correspondence Address Required for Notification MPEP 403 Required Customer Number for Correspondence Address Required MPEP 403 Permitted Correspondence Address Required for Notification MPEP 403 Permitted Attorney/Agent Correspondence Address Requirement MPEP 403 Office Selects Correspondence Address from Specified Addresses MPEP 403.01(a) Permitted Double Correspondence Not Allowed With Applicant and Attorney MPEP 403 Single Customer Number for Correspondence Address MPEP 403 Permitted Application Data Sheet Does Not Constitute Power of Attorney MPEP 601.05(a) Permitted Other Related FAQs 5 FAQs Collapse What is the significance of a Customer Number in patent application correspondence? How does the USPTO handle correspondence for juristic entities in patent applications? How does the USPTO handle correspondence from multiple patent practitioners? How does the USPTO handle correspondence from multiple attorneys in ...