Granted Patent
Utility
US 4,424,890 · App. 06/306,797
Manual clutch wear adjuster
Inventor:
Michael R. Duethman
Patented Case
View Patent ↗
Granted: Jan 10, 1984
Filed: Sep 29, 1981
Inventor
Michael R. Duethman
Assignee (at issue)
Chrysler Group LLC
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.