Granted Patent
Utility
US 5,349,816 · App. 08/019,902
Exhaust emission control system
Inventors:
Daisuke Sanbayashi, Osamu Hirako, Yoshiaki Danno, Kazuo Koga
Patented Case
View Patent ↗
Granted: Sep 27, 1994
Filed: Feb 19, 1993
Inventors
Daisuke Sanbayashi
Osamu Hirako
Yoshiaki Danno
Kazuo Koga
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.