Granted Patent
Utility
US 4,238,017 · App. 05/857,550
Clutch mechanism
Inventor:
Romas B. Spokas
Patented Case
View Patent ↗
Granted: Dec 9, 1980
Filed: Dec 5, 1977
Inventor
Romas B. Spokas
Assignee (at issue)
BorgWarner Inc.
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.