37 CFR 1.2
Business to be transacted in writing.

This document contains one section of Chapter 37 of the Code of Federal Regulations. This page was last updated in November, 2005. You may return to the main 37 CFR Index, or to the index for one of the follow parts:

part 1 (patents);
part 2 (trademarks);
part 3 (assignments);
part 10 (representation); or
part 200+ (copyrights).

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§1.2 Business to be transacted in writing.

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.