Granted Patent
Utility
US 6,234,511 · App. 09/420,232
Bearing system for a trailer coupling
Inventors:
Wolfgang Gentner, Emmerich Kleb, Joerg Riehle, Hans Riehle
Patented Case
View Patent ↗
Granted: May 22, 2001
Filed: Oct 19, 1999
Inventors
Wolfgang Gentner
Emmerich Kleb
Joerg Riehle
Hans Riehle
Assignee (at issue)
ORIS Fahrzeugteile Hans Riehle GmbH
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.