Granted Patent
Utility
US 5,295,908 · App. 08/071,373
Spacing mechanism for the plates of a fluid friction coupling
Inventors:
Siegfried Schumann, Wolfgang Gimpel
Patented Case
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Granted: Mar 22, 1994
Filed: Jun 2, 1993
Inventors
Siegfried Schumann
Wolfgang Gimpel
Assignee (at issue)
Viscodrive 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.