Granted Patent
Utility
US 5,979,699 · App. 08/999,846
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Inventor:
Raymond Simpson
Patented Case
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Granted: Nov 9, 1999
Filed: Oct 9, 1997
Inventor
Raymond Simpson
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.