Granted Patent
Utility
US 4,082,224 · App. 05/730,492
Fuel injection nozzle
Inventor:
Ervin E. Mangus
Patented Case
View Patent ↗
Granted: Apr 4, 1978
Filed: Oct 7, 1976
Inventor
Ervin E. Mangus
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.