Granted Patent
Utility
US 4,965,135 · App. 07/133,595
Multilayer film with dead fold and twistability characteristics
Inventors:
Jang-hi Im, Rexford A. Maugans, David R. Kiesel
Patented Case
View Patent ↗
Granted: Oct 23, 1990
Filed: Dec 14, 1987
Inventors
Jang-hi Im
Rexford A. Maugans
David R. Kiesel
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.