Granted Patent
Utility
US 5,224,462 · App. 07/937,008
Air/fuel ratio control system for an internal combustion engine
Inventor:
Daniel V. Orzel
Patented Case
View Patent ↗
Granted: Jul 6, 1993
Filed: Aug 31, 1992
Inventor
Daniel V. Orzel
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.