Can I get a refund if the patent officer's fee is overpaid?

The second chapter of China National Intellectual Property Administration's Patent Examination Guide contains relevant provisions: if the patent fee is overpaid, re-paid or wrongly paid, the party concerned may request a refund within three years from the date of payment; Those that meet the requirements shall be returned by the Patent Office.

Non-refundable situation

(1) For overpayment, overpayment or wrong payment, the parties concerned will not ask for a refund until three years after the payment date.

(2) The parties cannot provide evidence of wrong payment.

(three) the parties request the refund of the fees that have been paid in accordance with the regulations before the request for fee reduction is approved.