35 U.S.C. § 286 : US Code - Section 286: Time limitation on damages

Search 35 U.S.C. § 286 : US Code - Section 286: Time limitation on damages

Except as otherwise provided by law, no recovery shall be had for
any infringement committed more than six years prior to the filing
of the complaint or counterclaim for infringement in the action.
In the case of claims against the United States Government for
use of a patented invention, the period before bringing suit, up to
six years, between the date of receipt of a written claim for
compensation by the department or agency of the Government having
authority to settle such claim, and the date of mailing by the
Government of a notice to the claimant that his claim has been
denied shall not be counted as part of the period referred to in
the preceding paragraph.