Granted Patent
Utility
US 4,694,068 · App. 06/655,794
Method for the preparation of a vinylidene chloride interpolymer film
Inventors:
Phillip DeLassus, William J. Raich
Patented Case
View Patent ↗
Granted: Sep 15, 1987
Filed: Oct 1, 1984
Inventors
Phillip DeLassus
William J. Raich
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.