Granted Patent
Utility
US 5,651,215 · App. 08/697,097
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Inventor:
Harry M. Riegelman
Patented Case
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Granted: Jul 29, 1997
Filed: Aug 19, 1996
Inventor
Harry M. Riegelman
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.