Granted Patent
Utility
US 5,758,498 · App. 08/447,927
Catalytic device of electrically heated type
Inventor:
Toyoaki Fukui
Patented Case
View Patent ↗
Granted: Jun 2, 1998
Filed: May 23, 1995
Inventor
Toyoaki Fukui
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.