Granted Patent
Utility
US 4,362,533 · App. 05/749,849
Terpolymers of ethylene, vinyl acetate, and styrene as pour point depressants for distillate fuels
Inventor:
Nash A. Kidd
Patented Case
View Patent ↗
Granted: Dec 7, 1982
Filed: Dec 13, 1976
Inventor
Nash A. Kidd
Assignee (at issue)
THE DOW CHEMICAL 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.