Masco Corporation v. United States, and Mosler, Inc. And Hamilton Products Group, Inc., Third Party and Mas-Hamilton Group, Inc., Third Party
Court of Appeals for the Third Circuit
1Opinion of the Court
LINN, Circuit Judge.
Masco Corporation (“Masco”) appeals from the judgment of the Court of Federal Claims holding, on cross-motions for summary judgment, that the United States had not infringed the claims of U.S. Patents Nos. 5,540,068 and 5,778,711, directed to an electronic dial combination lock. Masco Corp. v. United States, 49 Fed. Cl. 337, 59 USPQ2d 1036 (Fed.Cl.2001) (“Masco Corp.”). We conclude that the court erred in construing the “transmitting a force applied to the dial to the lever” limitation as a step-plus-function limitation, but did not otherwise err in its claim construction.…
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