United States Supreme Court

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FESTO CORP. v. SHOKETSU KINZOKU KOGYO KABUSHIKI CO., LTD., 00-1543

Prosecution history estoppel may apply to any claim amendment made to satisfy the Patent Act's requirements, not just to amendments made to avoid the prior art, but estoppel need not bar suit against every equivalent to the amended claim element.

Appellate Information

  • Decided 05/28/2002
  • Published 05/28/2002

Judges

Court

  • United States Supreme Court

Counsel