Granted Patent
Utility
US 4,949,828 · App. 07/260,913
Apparatus and method for sensing clutch slippage
Inventor:
Robert A. Olsen
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Oct 21, 1988
Inventor
Robert A. Olsen
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.