Granted Patent
Utility
US 5,536,767 · App. 08/402,300
Polyol esters of zinc mercaptoacids as heat stabilizers for PVC processing
Inventors:
George F. Beekman, Keith A. Mesch, Lionel R. Price
Patented Case
View Patent ↗
Granted: Jul 16, 1996
Filed: Mar 10, 1995
Inventors
George F. Beekman
Keith A. Mesch
Lionel R. Price
Assignee (at issue)
Morton International, 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.