Honeywell Int’l Inc. v. Hamilton Sundstrand Corp.

Case Number: CLB0193

Date: 04.18.2008

Citation: 86 U.S.P.Q.2d 1718 (Fed. Cir. 2008)

A presumption of prosecution history estoppel may be rebutted by a showing of unforeseeability of the alleged equivalent at the time of the narrowing amendment or by a showing of tangentiality of the alleged equivalent with respect to the rationale for the narrowing amendment.

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