How can I request a customer number for patent-related purposes?

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Source: FAQ (MPEP-Based) BlueIron Update: 2024-09-30 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. To request a customer number for patent-related purposes, you can use Form PTO/SB/125, titled “Request for Customer Number.” This form is specifically mentioned in MPEP 2595 , which states: “Form PTO/SB/125 (“Request for Customer Number”) may be used to request a customer number.” A customer number is useful for various patent-related communications with the USPTO, including maintenance fee correspondence. Related Rules from the Manual of Patent Examining Procedure 10 rules Collapse Request for Customer Number Permitted MPEP 2595 Permitted Petition for Unintentionally Delayed Maintenance Fee Payment in Expired Patent MPEP 2595 Permitted Unintentional Delay for Patent Reinstatement MPEP 2268 Unavoidable Delay Petitions Eliminated for Patent Reinstatement MPEP 2268 Unintentional Delayed Maintenance Fee Acceptable to Reinstate Patent MPEP 2590 Permitted Petition for Unintentionally Delayed Maintenance Fee MPEP 2590 Unintentional Delay in Maintenance Fee Payment MPEP 2590 Permitted Petition for Unintentional Delay of Maintenance Fee Payment MPEP 2590 Required Separate Fees for Each Unpaid Maintenance Fee MPEP 2590 Required Late Payment of Maintenance Fee Permitted After Grace Period If Unintentional MPEP 2590 Permitted Other Related FAQs 5 FAQs Collapse Are the forms mentioned in MPEP 2595 mandatory for maintenance fee submissions? What is a fee address and how do I establish one for maintenance fee purposes? What form should I use to petition for acceptance of a late maintenance fee payment? What forms are recommended for submitting maintenance fees? What is the difference between absolute and equitable intervening rights?