Granted Patent
Utility
US 5,765,521 · App. 08/732,590
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Inventors:
Gunther Stutzle, Bernd Schrelber, Wolfgang Bruttel, Franz Maucher, Kurt Hoffmann
Patented Case
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Granted: Jun 16, 1998
Filed: Oct 15, 1996
Inventors
Gunther Stutzle
Bernd Schrelber
Wolfgang Bruttel
Franz Maucher
Kurt Hoffmann
Assignee (at issue)
Schwabische Huttenwerke 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.