Granted Patent
Utility
US 4,766,202 · App. 07/044,163
Method for the preparation of a vinylidene chloride interpolymer film
Inventors:
Phillip DeLassus, William J. Raich
Patented Case
View Patent ↗
Granted: Aug 23, 1988
Filed: Jun 17, 1987
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.