Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1988-01-25
1988-12-20
Norton, Donald F.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
220293, B65D 4302
Patent
active
047920874
ABSTRACT:
A removable, molded plastic cover for closing a fill opening in a container wall, which cover includes a center panel having a peripheral rim and a plurality of lock tabs extending radially outward therefrom and spaced from each other to define grooves for receiving portions of the container wall adjacent the fill opening to close the opening.
REFERENCES:
patent: 1871907 (1932-08-01), Olt
patent: 2241793 (1941-05-01), Steven
Carpenter Richard W.
Container Corporation of America
Norton Donald F.
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