Granted Patent
Utility
US 6,814,194 · App. 10/617,241
Hydraulic torque converter
Inventors:
Gunnar Back, Bruno Muller, Hubert Friedmann, Stephan Maienschein
Patented Case
View Patent ↗
Granted: Nov 9, 2004
Filed: Jul 9, 2003
Inventors
Gunnar Back
Bruno Muller
Hubert Friedmann
Stephan Maienschein
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.