Granted Patent
Utility
US 4,228,946 · App. 06/000,154
Carton
Inventor:
Morris W. Kuchenbecker
Patented Case
View Patent ↗
Granted: Oct 21, 1980
Filed: Jan 2, 1979
Inventor
Morris W. Kuchenbecker
Assignee (at issue)
American Can Company
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.