Granted Patent
Utility
US 4,711,702 · App. 06/779,968
Protective containerboard
Inventor:
Paul F. Hood
Patented Case
View Patent ↗
Granted: Dec 8, 1987
Filed: Sep 25, 1985
Inventor
Paul F. Hood
Assignee (at issue)
Stone Container Corporation
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.