Granted Patent
Utility
US 5,605,040 · App. 08/412,663
Inferring temperature of a heated exhaust gas oxygen sensor
Inventors:
Michael John Cullen, Paul F. Smith, Thomas Scott Gee
Patented Case
View Patent ↗
Granted: Feb 25, 1997
Filed: Mar 29, 1995
Inventors
Michael John Cullen
Paul F. Smith
Thomas Scott Gee
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.