Granted Patent
Utility
US 5,070,976 · App. 07/634,903
Sprag retainer
Inventor:
Thaddeus F. Zlotek
Patented Case
View Patent ↗
Granted: Dec 10, 1991
Filed: Dec 27, 1990
Inventor
Thaddeus 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.