Granted Patent
Utility
US 6,422,007 · App. 09/700,484
Exhaust system
Inventor:
Johannes Hartick
Patented Case
View Patent ↗
Granted: Jul 23, 2002
Filed: Feb 21, 2001
Inventor
Johannes Hartick
Assignee (at issue)
ArvinMeritor GmbH
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.