Granted Patent
Utility
US 6,041,591 · App. 08/887,218
Exhaust gas heating system for in-cylinder injection internal combustion engine
Inventors:
Katsunori Kaneko, Kazuo Koga, Taizo Kitada, Hiromitsu Ando
Patented Case
View Patent ↗
Granted: Mar 28, 2000
Filed: Jul 2, 1997
Inventors
Katsunori Kaneko
Kazuo Koga
Taizo Kitada
Hiromitsu Ando
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.