Granted Patent
Utility
US 6,601,682 · App. 09/837,508
Clutch disc
Inventors:
Stefan Lehmann, Karl-Ludwig Kimmig, Roland Seebacher, Friedrich Gerhardt, Joachim Hoffman, Hermann Langeneckert
Patented Case
View Patent ↗
Granted: Aug 5, 2003
Filed: Apr 18, 2001
Inventors
Stefan Lehmann
Karl-Ludwig Kimmig
Roland Seebacher
Friedrich Gerhardt
Joachim Hoffman
Hermann Langeneckert
Assignee (at issue)
LuK Lamellen und Kupplungsbau Beteiligungs 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.