Granted Patent
Utility
US 5,664,725 · App. 08/610,497
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Inventor:
Gerard F. Walz
Patented Case
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Granted: Sep 9, 1997
Filed: Mar 4, 1996
Inventor
Gerard F. Walz
Assignee (at issue)
Walz Postal Solutions, Inc.
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.