Granted Patent
Utility
US 4,354,630 · App. 06/195,875
Pyramid carton closure
Inventor:
Harry I. Roccaforte
Patented Case
View Patent ↗
Granted: Oct 19, 1982
Filed: Oct 10, 1980
Inventor
Harry I. Roccaforte
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.