Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1989-12-07
1990-08-28
Elkins, Gary E.
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
229114, 229149, B65D 522
Patent
active
049518658
ABSTRACT:
A carton with an integrally hinged tray and cover assembled as a preform and including a lock flange on the front wall of the cover with projecting lock tabs engageable through corresponding slots in the front wall of the tray. The lock flange is gusset-engaged at the opposed ends thereof to the side walls of the cover, and seats on support shoulders on the opposed side walls of the tray to stabilize the flange, and hence the lock tabs thereon, in an extended position for engagement of the tabs within the corresponding slots when the cover is closed.
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Dopaco, Inc.
Elkins Gary E.
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