Guide to Patent Examination Part V Chapter II
4.2. 1 Refund principle
If the patent fee is overpaid, re-paid or wrongly paid, the parties 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.
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You need to submit a refund application and supporting materials, such as remittance voucher, and return it to the payer after approval. Refund application can be submitted within 3 years after payment.
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Yes, you will receive a receipt after 20 days of payment. Fill in an opinion statement (about the fee) after receiving the receipt, and indicate the reason, bill number, fee amount and payment date in the third column, and provide the bank account number, name and bank information of the payee (the refund payee of the Patent Office). And select "Copy of Expense Receipt" in the fourth column. And provide a copy of the receipt. The time limit for applying for refund is 3 years from the date of payment. Submit the request and there will be a reply in about three months.
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