Granted Patent
Utility
US 3,987,703 · App. 05/496,477
Combined restrictor and dead engine lowering valve
Inventor:
Eugene E. Latimer
Patented Case
View Patent ↗
Granted: Oct 26, 1976
Filed: Aug 12, 1974
Inventor
Eugene E. Latimer
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.