§ 1.2 Business to be transacted in writing.

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Title 37 CFR: Patents, Trademarks, and Copyrights › Chapter I: UNITED STATES PATENT AND TRADEMARK OFFICE, DEPARTMENT OF COMMERCE › Part 1: RULES OF PRACTICE IN PATENT CASES › Subpart A: General Provisions › § 1.2: § 1.2 Business to be transacted in writing.

This text was captured on Aug 14, 2026. It is a snapshot, not a live feed, so check the official code before relying on it.

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All business with the Patent and Trademark Office should be transacted in writing. The personal attendance of applicants or their attorneys or agents at the Patent and Trademark Office is unnecessary. The action of the Patent and Trademark Office will be based exclusively on the written record in the Office. No attention will be paid to any alleged oral promise, stipulation, or understanding in relation to which there is disagreement or doubt.

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