Granted Patent
Utility
US 4,366,890 · App. 06/250,752
Clutch disengagement system
Inventor:
David S. Suckow
Patented Case
View Patent ↗
Granted: Jan 4, 1983
Filed: Jun 30, 1980
Inventor
David S. Suckow
Assignee (at issue)
Caterpillar Tractor Co.
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.