Granted Patent
Utility
US 6,400,559 · App. 09/886,785
Current distributor
Inventors:
Klaus Kohler, Jürgen Fischbach, Christian Kölbel, Günther Horaczek
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jun 22, 2001
Inventors
Klaus Kohler
Jürgen Fischbach
Christian Kölbel
Günther Horaczek
Assignee (at issue)
EFEN Elektrotechnische Fabrik 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.