Granted Patent
Utility
US 5,778,856 · App. 08/501,050
Control device and control method for lean-burn engine
Inventors:
Kojiro Okada, Kazuhide Togai, Masaji Ishida
Patented Case
View Patent ↗
Granted: Jul 14, 1998
Filed: Sep 28, 1995
Inventors
Kojiro Okada
Kazuhide Togai
Masaji Ishida
Assignee (at issue)
MITSUBISHI JIDOSHA KOGYO KABUSHIKI KAISHA
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.