35 U.S.C. 253, Disclaimer

Executive summary:

Revision by the AIA. The U.S. Patent Act was heavily revised by the America Invents Act. Revisions that alter this section of the Act can be seen in the revision page.

Source and Index. This document contains Section 253 ("Disclaimer") of the U.S. Patent Act. This section was taken from the Eighth Edition, Eighth Revision of the MPEP (July 2010). This page was last updated in January 2011. You may return to the section index to find a particular section. Alternatively, you may search the Patent Act using the search box that appears on the left side of every page of BitLaw--you may restrict your search to Statutes on the search results page.

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35 U.S.C. 253 Disclaimer.

Whenever, without any deceptive intention, a claim of a patent is invalid the remaining claims shall not thereby be rendered invalid. A patentee, whether of the whole or any sectional interest therein, may, on payment of the fee required by law, make disclaimer of any complete claim, stating therein the extent of his interest in such patent. Such disclaimer shall be in writing and recorded in the Patent and Trademark Office, and it shall thereafter be considered as part of the original patent to the extent of the interest possessed by the disclaimant and by those claiming under him.

In like manner any patentee or applicant may disclaim or dedicate to the public the entire term, or any terminal part of the term, of the patent granted or to be granted.

(Amended Jan. 2, 1975, Public Law 93-596, sec. 1, 88 Stat. 1949.)