Granted Patent
Utility
US 5,158,062 · App. 07/624,825
Adaptive air/fuel ratio control method
Inventor:
Bor-Dong Chen
Patented Case
View Patent ↗
Granted: Oct 27, 1992
Filed: Dec 10, 1990
Inventor
Bor-Dong Chen
Assignee (at issue)
Ford Motor 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.