Granted Patent
Utility
US 6,708,488 · App. 10/131,809
Exhaust system for an internal combustion engine
Inventor:
Hermann Buter
Patented Case
View Patent ↗
Granted: Mar 23, 2004
Filed: Apr 19, 2002
Inventor
Hermann Buter
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.