Is there a fee for requesting a Certificate of Correction for an Office mistake?
No, there is no fee for requesting a Certificate of Correction for an Office mistake. According to MPEP 1480, which cites 35 U.S.C. 254: “Whenever a mistake in a patent, incurred through the fault of the Patent and Trademark Office, is clearly disclosed by the records of the Office, the Director may issue a certificate…
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