Granted Patent
Utility
US 5,275,795 · App. 07/928,393
Method for purification of lean-burn engine exhaust gas
Inventors:
Clifford Norman Montreuil, Haren S. Gandhi, Mohinder S. Chattha
Patented Case
View Patent ↗
Granted: Jan 4, 1994
Filed: Aug 12, 1992
Inventors
Clifford Norman Montreuil
Haren S. Gandhi
Mohinder S. Chattha
Assignee (at issue)
Ford Motor Company
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.