Granted Patent
Utility
US 6,451,452 · App. 09/993,806
Overlay material for plain bearing
Inventors:
Fritz Niegel, Karl-Heinz Gruenthaler, Werner Lucchetti, Hans-Ulrich Huhn
Patented Case
View Patent ↗
Granted: Sep 17, 2002
Filed: Nov 6, 2001
Inventors
Fritz Niegel
Karl-Heinz Gruenthaler
Werner Lucchetti
Hans-Ulrich Huhn
Assignee (at issue)
Federal-Mogul Wiesbaden 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.