Envelopes – wrappers – and paperboard boxes – Paperboard box – With closure for an access opening
Patent
1988-04-25
1989-02-07
Marcus, Stephen
Envelopes, wrappers, and paperboard boxes
Paperboard box
With closure for an access opening
206611, 22912532, 229167, B65D 520, B65D 568
Patent
active
048026190
ABSTRACT:
A box tray has rectangular bottom wall and opposing pairs of perpendicular side and end walls. Each of the side and end walls are formed from integral extensions of the corresponding edges of said bottom wall foldable into a tubular rectilinear cross-section defined in sequence by outer panel, a top panel, an inner panel, a bottom panel and an interior panel. The interior panel when folded lies contiguous to the inner surface of the outer wall panel and is fixedly secured to it. Flaps integrally extend from the lateral ends of the outer panel of one of the paired sides and end walls so as to be fixedly inserted between the contiguous outer and interior wall panels of the other pair of side or end walls to thereby maintain the side and end walls perpendicular and at right angles to each other.
REFERENCES:
patent: 2272078 (1942-02-01), Zalkind
patent: 2301575 (1942-11-01), Otten
patent: 3049283 (1962-08-01), Buttery et al.
patent: 3185662 (1965-05-01), Feo
patent: 3371843 (1968-03-01), Hainey
patent: 3499597 (1970-03-01), Katzman
patent: 3603500 (1971-09-01), Dutcher
patent: 3926362 (1975-12-01), Beck et al.
Amer Myron
Elkins Gary E.
Marcus Stephen
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