Granted Patent
Utility
US 4,157,030 · App. 05/881,476
System for deriving fuel consumption of a vehicle
Inventor:
William A. Keely
Patented Case
View Patent ↗
Granted: Jun 5, 1979
Filed: Feb 27, 1978
Inventor
William A. Keely
Assignee (at issue)
Bendix Limited
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.