Granted Patent
Utility
US 4,438,496 · App. 06/269,878
Electronic fuel injection feedback control method for internal combustion engines
Inventor:
Tomonori Ohie
Patented Case
View Patent ↗
Granted: Mar 20, 1984
Filed: Jun 3, 1981
Inventor
Tomonori Ohie
Assignee (at issue)
Diesel Kiki Co., Ltd.
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.