Granted Patent
Utility
US 4,293,059 · App. 06/072,362
Detent mechanism and transmission speed range selector valve
Inventor:
James H. Lucas
Patented Case
View Patent ↗
Granted: Oct 6, 1981
Filed: Sep 5, 1979
Inventor
James H. Lucas
Assignee (at issue)
Allis-Chalmers Corporation
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.