Granted Patent
Utility
US 4,452,213 · App. 06/303,486
Diesel fuel control valve and system
Inventor:
Wayne R. Duprez
Patented Case
View Patent ↗
Granted: Jun 5, 1984
Filed: Sep 18, 1981
Inventor
Wayne R. Duprez
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.