Granted Patent
Utility
US 4,978,356 · App. 07/304,915
Ball and socket bearing for artificial joint
Inventor:
Douglas G. Noiles
Patented Case
View Patent ↗
Granted: Dec 18, 1990
Filed: Feb 1, 1989
Inventor
Douglas G. Noiles
Assignee (at issue)
Joint Medical Products Corporation
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.