Granted Patent
Utility
US 5,451,628 · App. 08/252,074
Heat stabilization of PVC compositions containing a mixed metal stabilizer and antimony trioxide
Inventor:
Paulette Baker
Patented Case
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Granted: Sep 19, 1995
Filed: Jun 1, 1994
Inventor
Paulette Baker
Assignee (at issue)
Synthetic Products 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.