Granted Patent
Utility
US 6,173,571 · App. 09/180,448
Exhaust purifying apparatus for an in-cylinder injection type internal combustion engine
Inventors:
Katsunori Kaneko, Kazuo Koga, Hiromitsu Ando, Taizo Kitada
Patented Case
View Patent ↗
Granted: Jan 16, 2001
Filed: Nov 9, 1998
Inventors
Katsunori Kaneko
Kazuo Koga
Hiromitsu Ando
Taizo Kitada
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.