Granted Patent
Utility
US 5,567,751 · App. 08/457,813
Alkyl-tin PVC stabilizers with added aromatic ether alcohol to prevent precipitation
Inventor:
Samuel Hoch
Patented Case
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Granted: Oct 22, 1996
Filed: Jun 1, 1995
Inventor
Samuel Hoch
Assignee (at issue)
Witco Corporation
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.