Granted Patent
Utility
US 5,069,955 · App. 07/471,009
Film and blends of polyetheramide block copolymer and ethylene vinyl alcohol
Inventors:
Samuel W. Tse, George O. Schroeder, Teruo Iwanami
Patented Case
View Patent ↗
Granted: Dec 3, 1991
Filed: Jan 25, 1990
Inventors
Samuel W. Tse
George O. Schroeder
Teruo Iwanami
Assignee (at issue)
American National Can 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.