Granted Patent
Utility
US 4,769,995 · App. 06/945,597
Air-fuel ratio controller for a turbocharged internal combustion engine
Inventors:
J. Vincent Serve, David W. Eckard
Patented Case
View Patent ↗
Granted: Sep 13, 1988
Filed: Dec 23, 1986
Inventors
J. Vincent Serve
David W. Eckard
Assignee (at issue)
Cooper Industries Holdings
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.