Granted Patent
Utility
US 5,076,439 · App. 07/636,123
Carton having a barrier construction and method of making the same
Inventor:
Morris W. Kuchenbecker
Patented Case
View Patent ↗
Granted: Dec 31, 1991
Filed: Dec 31, 1990
Inventor
Morris W. Kuchenbecker
Assignee (at issue)
JAMES RIVER CORPORATION OF VIRGINIA
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.