Granted Patent
Utility
US 6,415,931 · App. 09/810,655
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Inventor:
Michael Mueller
Patented Case
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Granted: Jul 9, 2002
Filed: Mar 19, 2001
Inventor
Michael Mueller
Assignee (at issue)
THE HILLMAN GROUP, 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.