Granted Patent
Utility
US 6,681,752 · App. 10/212,475
Fuel injection system method and apparatus using oxygen sensor signal conditioning to modify air/fuel ratio
Inventors:
Michael L Kreikemeier, Chad Beauregard
Patented Case
View Patent ↗
Granted: Jan 27, 2004
Filed: Aug 5, 2002
Inventors
Michael L Kreikemeier
Chad Beauregard
Assignee (at issue)
Dynojet Research, Inc.
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.