Granted Patent
Utility
US 5,474,051 · App. 08/297,893
Fault detection method and system for exhaust gas recirculation system
Inventors:
Takuya Matsumoto, Toru Hashimoto, Mitsuhiro Miyake
Patented Case
View Patent ↗
Granted: Dec 12, 1995
Filed: Aug 30, 1994
Inventors
Takuya Matsumoto
Toru Hashimoto
Mitsuhiro Miyake
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.