Granted Patent
Utility
US 4,875,586 · App. 07/319,032
Multipack with top panel keel
Inventor:
Jean Chaussadas
Patented Case
View Patent ↗
Granted: Oct 24, 1989
Filed: Mar 6, 1989
Inventor
Jean Chaussadas
Assignee (at issue)
The Mead 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.