Granted Patent
Utility
US 5,137,374 · App. 07/565,446
Titanium bearing surface
Inventor:
Stanley S. Orkin
Patented Case
View Patent ↗
Granted: Aug 11, 1992
Filed: Aug 10, 1990
Inventor
Stanley S. Orkin
Assignee (at issue)
KAMATICS 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.