Granted Patent
Utility
US 6,523,657 · App. 09/678,438
Multiple-clutch device
Inventors:
Wolfgang Kundermann, Jorg Sudau
Patented Case
View Patent ↗
Granted: Feb 25, 2003
Filed: Oct 2, 2000
Inventors
Wolfgang Kundermann
Jorg Sudau
Assignee (at issue)
Mannesmann Sachs 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.