Granted Patent
Utility
US 5,363,646 · App. 08/126,849
Engine air/fuel control system with catalytic converter monitoring
Inventors:
Daniel V. Orzel, Glenn A. Zimlich, Tri T. Truong
Patented Case
View Patent ↗
Granted: Nov 15, 1994
Filed: Sep 27, 1993
Inventors
Daniel V. Orzel
Glenn A. Zimlich
Tri T. Truong
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.