Granted Patent
Utility
US 4,362,834 · App. 06/212,645
Extrusion-grade vinylidene chloride copolymer compositions and films prepared therefrom
Inventors:
Lloyd E. Lefevre, Fred Stevenson
Patented Case
View Patent ↗
Granted: Dec 7, 1982
Filed: Dec 3, 1980
Inventors
Lloyd E. Lefevre
Fred Stevenson
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.