Granted Patent
Utility
US 4,260,112 · App. 06/134,619
Springless fuel injection nozzle
Inventor:
William A. Grgurich
Patented Case
View Patent ↗
Granted: Apr 7, 1981
Filed: Feb 4, 1980
Inventor
William A. Grgurich
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.