Granted Patent
Utility
US 6,728,397 · App. 09/335,649
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Inventor:
Joan Tibor McNeal
Patented Case
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Granted: Apr 27, 2004
Filed: Jun 18, 1999
Inventor
Joan Tibor McNeal
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.