Granted Patent
Utility
US 5,393,471 · App. 07/831,246
Process for producing a pattern in a glaze composition and preparation of a mold therefore
Inventors:
Russell P. Rich, James E. Whipps
Patented Case
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Granted: Feb 28, 1995
Filed: Feb 7, 1992
Inventors
Russell P. Rich
James E. Whipps
Assignee (at issue)
The Burns & Russell Company
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.