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US3729127A Expired / Lapsed US ⏱️ 0.0 years remaining

Paper box construction

Assignee: BAGPRINT Ltd
•
Filing: 1971-09-08
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Granted: 1973-04-24
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Expires: 1991-09-08
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Abstract

Abstract A generally rectangular paper box having first and second closure panels with side webs between the panels at the upper end of each of the sides, a first stiffener on the first panel and a second stiffener on the second panel, the first panel adapted to underlie the second stiffener in order to close the box, the second stiffener and second panel having triangular cut-out sections, one leg of each of the triangles being at an angle to the web adjacent thereto and spaced apart therefrom, the leg being inclined away from the web adjacent thereto in the upward direction. There is also provided a centrally located longitudinal slot in the first panel and the first stiffener, an opening in the second panel and the second stiffener which is at least partly in register with the slot when the box is closed, a handle having a stop which bears against the underside of the first stiffener, the handle projecting through the slot and adapted to pass through the hole when the box is closed. The first stiffener and panel are folded substantially perpendicularly to the front panel and the webs are folded inwardly to abut the first panel and the second stiffener, thereby forming points, the second panel and stiffener being folded substantially perpendicularly to the back panel to close the box. In a preferred form of the device there are slits in the first panel and stiffener through which the points pass so that they lie beneath the first panel.

Inventors

  • 👤 S Kleinhaut

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 02:17
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/46; B65D5/46008; B65D5/46032; B65D5/4604

Claims Analysis

Total Claims: 12
Claim 1
Independent Claim 250 words
A paper box comprising a front and a back, sides connecting said front and said back, the upper parts of each of said front and said back constituting a first closure panel and a second closure panel respectively, side webs between said panels at the upper end of each of said sides, a first stiffener on said first panel and a second stiffener on said second panel, said first panel adapted to underlie said second stiffener when said box is closed, said second stiffener and said second panel having cutout sections substantially in the form of triangles, one leg of each of said triangles being at an angle to the web adjacent thereto and spaced apart therefrom, said leg inclined away from said web adjacent thereto in the upward direction, a substantially centrally located, longitudinal slot in said first panel and said first stiffener, an opening in said second panel and said second stiffener, said opening being at least partly in register with said slot when said box is closed, a handle having at least one stop, said stop bearing against the underside of said first stiffener, said handle projecting through said slot and adapted to pass through said opening when said box is closed, said first stiffener and panel being folded substantially perpendicularly to said front, said webs being folded inwardly to abut said first panel and said second stiffener thereby forming points, said second panel and stiffener being folded substantially perpendicularly to said back to close said box.
Claim 2
Dependent Claim 250 words
A paper box comprising a front and a back, sides connecting said front and said back, the upper parts of each of said front and said back constituting a first closure panel and a second closure panel respectively, side webs between said panels at the upper end of each of said sides, a first stiffener on said first panel and a second stiffener on said second panel, said first panel adapted to underlie said second stiffener when said box is closed, said second stiffener and said second panel having cutout sections substantially in the form of triangles, one leg of each of said triangles being at an angle to the web adjacent thereto and spaced apart therefrom, said leg inclined away from said web adjacent thereto in the upward direction, a substantially centrally located, longitudinal slot in said first panel and said first stiffener, an opening in said second panel and said second stiffener, said opening being at least partly in register with said slot when said box is closed, a handle having at least one stop, said stop bearing against the underside of said first stiffener, said handle projecting through said slot and adapted to pass through said opening when said box is closed, said first stiffener and panel being folded substantially perpendicularly to said front, said webs being folded inwardly to abut said first panel and said second stiffener thereby forming points, said second panel and stiffener being folded substantially perpendicularly to said back to close said box.
Claim 3
Dependent Claim 32 words
A paper box according to claim 1 wherein said handle has two stops, each of said stops constituting an enlargement at or adjacent the lower end of each arm of said handle.
Claim 4
Dependent Claim 45 words
A paper box according to claim 2 wherein said opening is larger than the cross-section of said handle passing therethrough, a nose on said handle adapted to overlie said second panel when said box is closed, whereby said second panel is retained in closed position.
Claim 5
Dependent Claim 23 words
A paper box according to claim 2 wherein said opening is in register with said slot only at or adjacent the ends thereof.
Claim 6
Dependent Claim 30 words
A paper box according to claim 4 wherein there are a pair of said noses each overlying said second panel at one of said ends when said box is closed.
Claim 7
Dependent Claim 30 words
A paper box according to claim 1 wherein said first panel and said first stiffener have holes therethrough, said points passing through said holes to lie beneath said first panel.
Claim 8
Dependent Claim 15 words
A paper box according to claim 6 wherein said points lie beneath said first stiffener.
Claim 9
Dependent Claim 19 words
A paper box according to claim 1 wherein said second stiffener is shorter and narrower than said second panel.
Claim 10
Dependent Claim 20 words
A paper box according to claim 8 wherein both of said stiffeners are shorter and narrower than their respective panels.
Claim 11
Dependent Claim 23 words
A paper box according to claim 1 wherein there is provided a third stiffener on said front hingedly connected to said first stiffener.
Claim 12
Dependent Claim 20 words
A paper box according to claim 10 wherein said third stiffener is affixed to said front adjacent said webs only.

References Cited (Backward Citations)

US3126146A Cited
US1037347A Cited
US1175142A Cited
US2405914A Cited
US2447736A Cited
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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-04-23 1976-10-23 1977-04-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-04-23 1980-10-23 1981-04-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-04-23 1984-10-23 1985-04-24 $7700.00 Window Closed / Lapsed

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