Granted Patent
Utility
US 4,950,702 · App. 07/281,218
Polyvinyl resin plastisol compositions
Inventor:
William D. Arendt
Patented Case
View Patent ↗
Granted: Aug 21, 1990
Filed: Dec 8, 1988
Inventor
William D. Arendt
Assignee (at issue)
VELSICOL CHEMICAL 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.