What information do I need to check a patent’s maintenance fee status online?

To check a patent’s maintenance fee status online, you need two pieces of information: The patent number The corresponding application number The MPEP states: “Maintenance fee status information for a patent of interest can be obtained over the internet by entering the patent number and the corresponding application number in the appropriate spaces on the…

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How can I check the maintenance fee payment status of a patent?

There are two primary methods to check the maintenance fee payment status of a patent: Online: Visit the USPTO’s Maintenance Fee webpage. Enter the patent number and corresponding application number in the appropriate fields. By Phone: Call the USPTO’s Maintenance Fee Branch. Note that telephone status requests are limited to two patent numbers per call.…

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