Granted Patent
Utility
US 5,422,811 · App. 08/022,490
Engine ignition timing control system and method
Inventor:
Kazuhide Togai
Patented Case
View Patent ↗
Granted: Jun 6, 1995
Filed: Feb 25, 1993
Inventor
Kazuhide Togai
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.