Granted Patent
Utility
US 4,295,449 · App. 06/099,137
Rotary fuel injection with sequencing
Inventors:
Richard A. Cemenska, George B. Grim
Patented Case
View Patent ↗
Granted: Oct 20, 1981
Filed: Sep 24, 1979
Inventors
Richard A. Cemenska
George B. Grim
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.