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US3712531A Expired / Lapsed US ⏱️ 0.0 years remaining

Mailing folder

Assignee: Mack Chicago Corp
•
Filing: 1971-09-24
•
Granted: 1973-01-23
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Expires: 1991-09-24
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Abstract

Abstract A one-piece foldable corrugated mailer container having a onepiece blank which upon assembly into a box defines locked triangular-like side wall pockets for protecting the side edges during shipment and for holding an object in place away from the peripheral side edges of the folder.

Inventors

  • 👤 R Mccall

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-03 09:38
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/18; B65D5/42; B65D5/54; Y; Y10; Y10S; Y10S229/00; Y10S229/924; Y10S229/925; Y10S229/939

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 224 words
A mailer folder comprising a onE-piece blank scored, stripped and cut along substantially perpendicular lines to form a bottom, rear, top, and front wall with a folding tucker member and opposing two-panel flap members hingeably integrated with said bottom wall forming respective side walls, said rear wall having opposing imperforated recesses along the boundary between said rear wall and top wall, said two-panel flap members each comprising a side wall hingeably integrated with the bottom wall and a flange wall hingeably integrated with said side wall, said flange wall having a projection extending from a side edge thereof in the vicinity of said rear wall and adapted for mating with said imperforated recess therein, said bottom, rear, top, front, side, flange wall and folding tucker member being sequentially foldable along said perpendicular lines to form a substantially rectangular exterior folder having a somewhat trapezoidal interior chamber, said folding tucker being foldable into said interior chamber, said side walls being held at an angle to the top and bottom walls by said projection of the flange wall in registry with the imperforated recesses so as to define opposing triangular-like side wall pockets outside said interior chamber when the folder is in assembled position thereby holding objects within the chamber away from the exterior edges of said folder and protecting end edges thereof from outside forces.
Claim 2
Dependent Claim 224 words
A mailer folder comprising a onE-piece blank scored, stripped and cut along substantially perpendicular lines to form a bottom, rear, top, and front wall with a folding tucker member and opposing two-panel flap members hingeably integrated with said bottom wall forming respective side walls, said rear wall having opposing imperforated recesses along the boundary between said rear wall and top wall, said two-panel flap members each comprising a side wall hingeably integrated with the bottom wall and a flange wall hingeably integrated with said side wall, said flange wall having a projection extending from a side edge thereof in the vicinity of said rear wall and adapted for mating with said imperforated recess therein, said bottom, rear, top, front, side, flange wall and folding tucker member being sequentially foldable along said perpendicular lines to form a substantially rectangular exterior folder having a somewhat trapezoidal interior chamber, said folding tucker being foldable into said interior chamber, said side walls being held at an angle to the top and bottom walls by said projection of the flange wall in registry with the imperforated recesses so as to define opposing triangular-like side wall pockets outside said interior chamber when the folder is in assembled position thereby holding objects within the chamber away from the exterior edges of said folder and protecting end edges thereof from outside forces.
Claim 3
Dependent Claim 26 words
A mailer folder as defined in claim 1 wherein the side walls are held at an angle of about 45* to the top and bottom walls.
Claim 4
Dependent Claim 42 words
A mailer folder as defined in claim 1 including a perforated tear-strip extending along the blank from about the front wall through the top and rear walls and for a distance on the bottom wall to facilitate opening of the assembled folder.
Claim 5
Dependent Claim 30 words
A mailer folder as defined in claim 1 wherein at least a folding tucker member is provided with hot glue for sealing the assembled folder in a substantially pilfer-proof manner.
Claim 6
Dependent Claim 290 words
A mailer folder comprising a one-piece blank scored, stripped, and cut to form a five-panel section forming bottom, rear, top, front and folding tucker walls having relatively perpendicular edges, with the folding tucker wall being foldable in a first direction, a pair of two-panel side flap members hingedbly integrated with said bottom wall and being foldable generally perpendicular to said first direction, said rear wall having a pair of imperforated recesses in the vicinity of the side edges thereof opening toward each other, said imperforated recesses having a boundary thereof substantially along the score between said rear and top walls, said two-panel side flap members being sequentially foldable into opposed slanted side walls forming an angle of less than 90* with said bottom wall and into flange walls foldable in generally parallel relation to said bottom wall, said flange walls each having a side edge in the vicinity of said rear wall projecting beyond a corresponding side wall edge and adapted for mating with said imperforated recesses, said rear wall being sequentially foldable into a substantially perpendicular relation to said bottom wall and said flange wall so that the flange side edge protruding beyond the corresponding side wall edge locks with said imperforated recess, said top wall being sequentially foldable into a substantially spaced parallel relation to said bottom wall and into contact with said flange walls, said top and rear walls defining substantially triangular extending edge portions along sides of the assembled folder, said folding tucker wall being sequentially foldable into substantially planar relation with the top and bottom wall, and a pair of opposed outwardly opening triangular-like side wall pockets extending beyond said slanted side walls for resisting outside forces directed against the sides of the assembled folder.
Claim 7
Dependent Claim 290 words
A mailer folder comprising a one-piece blank scored, stripped, and cut to form a five-panel section forming bottom, rear, top, front and folding tucker walls having relatively perpendicular edges, with the folding tucker wall being foldable in a first direction, a pair of two-panel side flap members hingedbly integrated with said bottom wall and being foldable generally perpendicular to said first direction, said rear wall having a pair of imperforated recesses in the vicinity of the side edges thereof opening toward each other, said imperforated recesses having a boundary thereof substantially along the score between said rear and top walls, said two-panel side flap members being sequentially foldable into opposed slanted side walls forming an angle of less than 90* with said bottom wall and into flange walls foldable in generally parallel relation to said bottom wall, said flange walls each having a side edge in the vicinity of said rear wall projecting beyond a corresponding side wall edge and adapted for mating with said imperforated recesses, said rear wall being sequentially foldable into a substantially perpendicular relation to said bottom wall and said flange wall so that the flange side edge protruding beyond the corresponding side wall edge locks with said imperforated recess, said top wall being sequentially foldable into a substantially spaced parallel relation to said bottom wall and into contact with said flange walls, said top and rear walls defining substantially triangular extending edge portions along sides of the assembled folder, said folding tucker wall being sequentially foldable into substantially planar relation with the top and bottom wall, and a pair of opposed outwardly opening triangular-like side wall pockets extending beyond said slanted side walls for resisting outside forces directed against the sides of the assembled folder.
Claim 8
Dependent Claim 27 words
A mail folder as defined in claim 5 wherein the folding tucker wall is provided with rounded corners at the outer extremities thereof for ease of assembly.
Claim 9
Dependent Claim 37 words
A mailer folder as defined in claim 5 further characterized by being formed of corrugated stock and having the corrugations thereof extending transversely relatively to the principal extension of the blank from which said folder is formed.

References Cited (Backward Citations)

US3263897A Cited
US3426957A Cited
US3465946A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1976-01-23 1976-07-24 1977-01-23 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1980-01-23 1980-07-24 1981-01-23 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1984-01-23 1984-07-24 1985-01-23 $7700.00 Window Closed / Lapsed

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