Granted Patent
Utility
US 5,116,375 · App. 07/572,450
Knee prosthesis
Inventor:
Aaron A. Hofmann
Patented Case
View Patent ↗
Granted: May 26, 1992
Filed: Aug 27, 1990
Inventor
Aaron A. Hofmann
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.