Granted Patent
Utility
US 4,363,841 · App. 06/334,581
Laminated packaging material
Inventor:
John E. Snow
Patented Case
View Patent ↗
Granted: Dec 14, 1982
Filed: Dec 28, 1981
Inventor
John E. Snow
Assignee (at issue)
Champion International Corporation Limited
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.