Source: https://bitlaw.com/source/mpep/2515.html
Timestamp: 2019-04-19 10:35:28+00:00

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(a) The patentee may pay maintenance fees and any necessary surcharges, or any person or organization may pay maintenance fees and any necessary surcharges on behalf of a patentee. A maintenance fee transmittal letter may be signed by a juristic applicant or patent owner. A patentee need not file authorization to enable any person or organization to pay maintenance fees and any necessary surcharges on behalf of the patentee.
(b) A maintenance fee and any necessary surcharge submitted for a patent must be submitted in the amount due on the date the maintenance fee and any necessary surcharge are paid. A maintenance fee or surcharge may be paid in the manner set forth in § 1.23 or by an authorization to charge a deposit account established pursuant to § 1.25. Payment of a maintenance fee and any necessary surcharge or the authorization to charge a deposit account must be submitted within the periods set forth in § 1.362(d), (e), or (f). Any payment or authorization of maintenance fees and surcharges filed at any other time will not be accepted and will not serve as a payment of the maintenance fee except insofar as a delayed payment of the maintenance fee is accepted by the Director in an expired patent pursuant to a petition filed under § 1.378. Any authorization to charge a deposit account must authorize the immediate charging of the maintenance fee and any necessary surcharge to the deposit account. Payment of less than the required amount, payment in a manner other than that set forth in § 1.23, or in the filing of an authorization to charge a deposit account having insufficient funds will not constitute payment of a maintenance fee or surcharge on a patent. The procedures set forth in § 1.8 or § 1.10 may be utilized in paying maintenance fees and any necessary surcharges.
37 CFR 1.366 establishes the guidelines and procedures for submission of maintenance fees, including any necessary surcharges. The patentee may pay maintenance fees and any necessary surcharges or any person or organization may pay maintenance fees and any necessary surcharges on behalf of the patentee without filing in the Office evidence of authorization by the patentee to pay maintenance fees. This will enable patentees to pay the maintenance fees and any necessary surcharges themselves or authorize some person or organization to pay maintenance fees and any necessary surcharges on their behalf. No verification of the authority to pay maintenance fees and any necessary surcharges in a particular patent will be made by the Office. While anyone may pay the maintenance fees and any necessary surcharges on a patent, if the payment is accepted by the Office, any Office notices relating to maintenance fees and any necessary surcharges will be mailed to the "fee address" set forth in 37 CFR 1.363. If the payment is not accepted by the Office, it will be returned to the person who submitted the payment if a return address is available. It is strongly recommended that the payor should include a return address along with his or her telephone number since the Office may contact the payor in some instances when it is unclear to which patent the fees are to be applied. See MPEP § 2530.
(D) whether entity status is being changed or claimed with the payment.
The Maintenance Fee Transmittal Form, PTO/SB/45 should be used when submitting maintenance fees by mail or by facsimile transmission. This form is available, upon request, from the Maintenance Fee Branch. It is also available from the USPTO website (www.uspto.gov/patent/patents-forms#patent ).

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