Granted Patent
Utility
US 6,609,601 · App. 09/991,505
Friction clutch
Inventor:
Sebastian Vogt
Patented Case
View Patent ↗
Granted: Aug 26, 2003
Filed: Nov 6, 2001
Inventor
Sebastian Vogt
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.