What is the “on sale” bar under pre-AIA 35 U.S.C. 102(b)?
The “on sale” bar under pre-AIA 35 U.S.C. 102(b) prevents an inventor from obtaining a patent if the invention was on sale in the United States more than one year prior to the date of the application for patent. The Supreme Court in Pfaff v. Wells Electronics, Inc. established a two-part test for determining if…
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