Granted Patent
Utility
US 5,712,433 · App. 08/689,494
Exhaust gas measuring apparatus
Inventor:
Mitoku Kojima
Patented Case
View Patent ↗
Granted: Jan 27, 1998
Filed: Aug 7, 1996
Inventor
Mitoku Kojima
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.