Granted Patent
Utility
US 5,314,987 · App. 07/761,490
Barrier compositions and film made therefrom having improved optical and oxygen barrier properties
Inventors:
Yong Joo Kim, Ray Germonprez
Patented Case
View Patent ↗
Granted: May 24, 1994
Filed: Sep 18, 1991
Inventors
Yong Joo Kim
Ray Germonprez
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.