Granted Patent
Utility
US 6,772,155 · App. 09/825,906
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Inventor:
Rolf Günter Erich Stegelmann
Patented Case
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Granted: Aug 3, 2004
Filed: Apr 4, 2001
Inventor
Rolf Günter Erich Stegelmann
Assignee (at issue)
NCR Corporation
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.