Granted Patent
Utility
US 4,373,620 · App. 06/088,449
Elastomeric energizer for sprag clutch
Inventor:
T. F. Zlotek
Patented Case
View Patent ↗
Granted: Feb 15, 1983
Filed: Oct 26, 1979
Inventor
T. F. Zlotek
Assignee (at issue)
DANA 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.