To invoke argument-based estoppel, the prosecution history must evince a “clear and unmistakable surrender of subject matter.”
Pharmacia & Upjohn Co. v. Mylan Pharm., Inc., 170 F.3d 1373, 1377 (Fed.Cir.1999).


To invoke argument-based estoppel, the prosecution history must evince a “clear and unmistakable surrender of subject matter.”
Pharmacia & Upjohn Co. v. Mylan Pharm., Inc., 170 F.3d 1373, 1377 (Fed.Cir.1999).

