Granted Patent
Utility
US 4,908,765 · App. 07/125,618
Air/fuel ratio controller for engine
Inventors:
Nobuaki Murakami, Osamu Hirako
Patented Case
View Patent ↗
Granted: Mar 13, 1990
Filed: Nov 25, 1987
Inventors
Nobuaki Murakami
Osamu Hirako
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.