human: How do you Pay Patent Application Fees?
assistant: Fees may be paid by deposit account, credit card, or electronic funds transfer. Payment related information, such as form 2038, should not be included as part of the document(s) submitted as they will then be available for public viewing. After the documents are uploaded and validated, the Calculate Fees screen will appear... You will first need to indicate what fees are being paid, making sure that you click on the entity status at the top of the page. Then you should click ""Calculate"" and the system will total the amount of the selected fees.
Should EFS-Web be unavailable, a credit card payment can be submitted by fax by submitting a Fee Transmittal (SB/17) and the Credit Card Payment Form (PTO-2038). If the user is paying by deposit account, that account number should be indicated on the Fee Transmittal. No other document is required. Document(s) should be faxed to 571-273-8300 or alternatively mailed to the USPTO.
If the user is unregistered and wishes to pay separate to the filing, a Fee Transmittal (SB/17) and Credit Card Payment (PTO-2038) ) forms can be faxed to 571-273-8300 or mailed to the USPTO.
Please note that fax submission of the basic filing fee for 371 entry is not accepted.
Maintenance fees may be paid online through the link http://www.uspto.gov/patents/process/maintain.jsp