Granted Patent
Utility
US 4,264,335 · App. 06/085,052
Suppressing the octane requirement increase of an automobile engine
Inventors:
Charles Bello, Robert J. Hartle, Gary M. Singerman
Patented Case
View Patent ↗
Granted: Apr 28, 1981
Filed: Oct 15, 1979
Inventors
Charles Bello
Robert J. Hartle
Gary M. Singerman
Assignee (at issue)
Gulf Research & Development Company
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.