Granted Patent
Utility
US 5,327,991 · App. 07/939,469
Exhaust gas purifying apparatus and method for a hybrid car
Inventor:
Masato Yoshida
Patented Case
View Patent ↗
Granted: Jul 12, 1994
Filed: Sep 2, 1992
Inventor
Masato Yoshida
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.