Granted Patent
Utility
US 4,936,863 · App. 07/193,571
Hip prosthesis
Inventor:
Aaron A. Hofmann
Patented Case
View Patent ↗
Granted: Jun 26, 1990
Filed: May 13, 1988
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.