Granted Patent
Utility
US 5,155,160 · App. 07/551,674
Polyolefin films having improved barrier properties
Inventors:
Gene H. C. Yeh, Attila Matray, Allyn J. Ziegenhagen
Patented Case
View Patent ↗
Granted: Oct 13, 1992
Filed: Jul 10, 1990
Inventors
Gene H. C. Yeh
Attila Matray
Allyn J. Ziegenhagen
Assignee (at issue)
James River II, Inc.
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.