Granted Patent
Utility
US 4,318,470 · App. 06/137,237
Carton with cells and blank for forming same
Inventor:
James Montealegre
Patented Case
View Patent ↗
Granted: Mar 9, 1982
Filed: Apr 4, 1980
Inventor
James Montealegre
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.