Granted Patent
Utility
US 4,822,367 · App. 07/011,070
Endoprosthesis for a hip joint socket
Inventor:
Karl-Gerhart Stuhmer
Patented Case
View Patent ↗
Granted: Apr 18, 1989
Filed: Feb 4, 1987
Inventor
Karl-Gerhart Stuhmer
Assignee (at issue)
Sulzer Brothers Limited
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.