Granted Patent
Utility
US 6,698,193 · App. 10/234,836
Exhaust gas cleaning system for an internal combustion engine, for a motor vehicle
Inventors:
Gerd Duerr, Joachim Karwath, Gerd Tiefenbacher
Patented Case
View Patent ↗
Granted: Mar 2, 2004
Filed: Sep 5, 2002
Inventors
Gerd Duerr
Joachim Karwath
Gerd Tiefenbacher
Assignee (at issue)
Daimlerchrysler AG
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.