Granted Patent
Utility
US 4,287,975 · App. 06/112,673
Clutch with fusible material as protective element
Inventor:
John J. Tuzson
Patented Case
View Patent ↗
Granted: Sep 8, 1981
Filed: Jan 16, 1980
Inventor
John J. Tuzson
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.