Granted Patent
Utility
US 6,649,340 · App. 08/453,623
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Inventor:
Roberto Crea
Patented Case
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Granted: Nov 18, 2003
Filed: May 30, 1995
Inventor
Roberto Crea
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.