Granted Patent
Utility
US 6,733,867 · App. 10/058,917
Heat-transferable security stamp
Inventors:
William F. Pinell, Rajendra Mehta, Harry Allen Seifert, John M. Harden
Patented Case
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Granted: May 11, 2004
Filed: Jan 28, 2002
Inventors
William F. Pinell
Rajendra Mehta
Harry Allen Seifert
John M. Harden
Assignee (at issue)
Standard Register, Inc.
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.