Granted Patent
Utility
US 6,444,148 · App. 09/809,063
Process and making molds for thermoforming a three-dimensional relief reproduction
Inventor:
Glenn T. Harding
Patented Case
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Granted: Sep 3, 2002
Filed: Mar 16, 2001
Inventor
Glenn T. Harding
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.