35 USC 288
Action for infringement of a patent containing an invalid claim

Executive summary:

This document contains one section of the U.S. Patent Act (found in Title 35 of the United States Code). This page was last updated in November 2005. All of the sections of the Patent Act are listed on the Index page. A Word Index is also available to the Patent Act.

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§288. Action for infringement of a patent containing an invalid claim

Whenever, without deceptive intention, a claim of a patent is invalid, an action may be maintained for the infringement of a claim of the patent which may be valid. The patentee shall recover no costs unless a disclaimer of the invalid claim has been entered at the Patent and Trademark Office before the commencement of the suit.

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