What information is required when submitting a maintenance fee payment?

When submitting a maintenance fee payment, certain identifying information is required. According to MPEP 2515:

• The patent number
• The application number of the United States application for the patent

Additionally, the following information should be provided:

• The fee year (3 1/2, 7 1/2, or 11 1/2 year fee)
• The amount of the maintenance fee and any surcharge
• Any assigned customer number
• Whether entity status is being changed or claimed with the payment

For reissue patents, both the reissue patent number and the original patent number should be included.

To learn more:

• maintenance fees
• patent information
• USPTO requirements
• fee submission