Granted Patent
Utility
US 4,919,677 · App. 07/392,709
Prosthetic acetabulum
Inventors:
Karl-Gerhart Stubmer, Rudolf Koch, Otto Frey
Patented Case
View Patent ↗
Granted: Apr 24, 1990
Filed: Aug 11, 1989
Inventors
Karl-Gerhart Stubmer
Rudolf Koch
Otto Frey
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.