What are the specific facsimile numbers for different USPTO offices?

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 USPTO has designated specific facsimile numbers for various offices to handle different types of correspondence. According to MPEP 502.01, some key facsimile numbers include:

• Central Facsimile Number (for most patent-related correspondence): (571) 273-8300
• International Patent Legal Administration (for responses to Decisions on Petition): (571) 273-0459
• Office of Data Management (for issue fee payments and drawings): (571) 273-2885
• Electronic Business Center (for Customer Number requests): (571) 273-0177
• Assignment Branch (for assignment documents): (571) 273-0140
• Central Reexamination Unit (for ex parte and inter partes reexamination correspondence): (571) 273-9900
• Patent Trial and Appeal Board (for contested cases and trials, where expressly authorized): (571) 273-0042
• Office of Petitions (for petitions to withdraw from issue): (571) 273-0025

The MPEP states: “For each Office location listed below, only the particular type of correspondence indicated may be transmitted to the specific facsimile number at that Office location. All other types of facsimile transmitted correspondence must be sent to the central facsimile number ((571) 273-8300).”

It’s crucial to use the correct facsimile number for your specific type of correspondence to ensure proper handling and processing by the USPTO.