Granted Patent
Utility
US 6,729,127 · App. 09/930,555
Exhaust cleaning system for motor vehicles, especially diesel-powered utility vehicles
Inventors:
Siegfried Woerner, Peter Zacke, Thomas Hauber, Rudolf Buhmann, Marcus Werni
Patented Case
View Patent ↗
Granted: May 4, 2004
Filed: Aug 15, 2001
Inventors
Siegfried Woerner
Peter Zacke
Thomas Hauber
Rudolf Buhmann
Marcus Werni
Assignee (at issue)
J. Eberspaecher GmbH & Co. KG
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.