US3871570A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shipping tray
Assignee: Stone Container Corp
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Filing: 1973-04-02
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Granted: 1975-03-18
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Expires: 1993-04-02
Abstract
Abstract A tray is provided having corners possessed of unusual stacking strength. Gusset flaps connect the sides of the end wall panels with the adjoining ends of the side wall panels, the gusset flaps being folded flat against the end walls. Top flanges connect the upper ends of the end walls to the end wall liner panels. Corner flaps are hinged to the sides of the top flanges and overlie end portions of the side wall panel. These corner flaps are locked in place by locking tongues.
Inventors
- 👤 Ivan E Garmon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:34
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/24; B65D5/248; B65D5/001; B65D5/0015; B65D5/003; Y; Y10; Y10S; Y10S229/00; Y10S229/915; Y10S229/916
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
100 words
A tray including: a rectangular bottom panel, side panels foldably connected to opposite sides of said bottom panel, end panels foldably secured to opposite ends of said bottom panel, top flanges hingedly connected to said end panels, end wall liner panels foldably connected to said top flanges, corner flaps hingedly connected to opposite sides of said top flanges, locking tongues hingedly connected to said corner flaps, said side walls including slots through which said locking tongues extend, said end wall liner panels having locking lugs thereon, and said bottom panel having apertures therein in which said locking lugs are engageable.
Claim 2
Dependent Claim
100 words
A tray including: a rectangular bottom panel, side panels foldably connected to opposite sides of said bottom panel, end panels foldably secured to opposite ends of said bottom panel, top flanges hingedly connected to said end panels, end wall liner panels foldably connected to said top flanges, corner flaps hingedly connected to opposite sides of said top flanges, locking tongues hingedly connected to said corner flaps, said side walls including slots through which said locking tongues extend, said end wall liner panels having locking lugs thereon, and said bottom panel having apertures therein in which said locking lugs are engageable.
Claim 3
Dependent Claim
25 words
The structure of claim 1 and including pairs of triangular flaps connecting the sides of said end panels to the ends of said side panels.
Claim 4
Dependent Claim
26 words
The structure of claim 1 and in which said top flanges include generally triangular portions at opposite ends thereof to which said corner flaps are hinged.
Claim 5
Dependent Claim
21 words
The structure of claim 1 and in which said locking tongues are foldable against the inner surfaces of said side walls.
Claim 6
Dependent Claim
133 words
A tray including: a rectangular bottom panel; side wall panels hingedly connected to opposite sides of said bottom panel and extending upwardly therefrom, end walls hingedly connected to opposite ends of said bottom panel and extending upwardly therefrom, top flanges hingedly connected to the upper edges of said end walls and extending parallel to said bottom panel, end wall liner panels higedly connected to said top flanges and extending inwardly of said end walls, corner flaps hingedly connected to the ends of said top flanges and extending outwardly of said side walls, locking tongues hinged to said corner flaps and extending through vertical apertures in said side walls, and said locking tongues extending between notches in the side edges of said end wall liner panels and said vertical apertures in said side walls.
Claim 7
Dependent Claim
133 words
A tray including: a rectangular bottom panel; side wall panels hingedly connected to opposite sides of said bottom panel and extending upwardly therefrom, end walls hingedly connected to opposite ends of said bottom panel and extending upwardly therefrom, top flanges hingedly connected to the upper edges of said end walls and extending parallel to said bottom panel, end wall liner panels higedly connected to said top flanges and extending inwardly of said end walls, corner flaps hingedly connected to the ends of said top flanges and extending outwardly of said side walls, locking tongues hinged to said corner flaps and extending through vertical apertures in said side walls, and said locking tongues extending between notches in the side edges of said end wall liner panels and said vertical apertures in said side walls.
Claim 8
Dependent Claim
26 words
The structure of claim 5 and in which said top flanges include generally triangular portions at opposite ends thereof to which said corner flaps are hinged.
Claim 9
Dependent Claim
26 words
The structure of claim 5 and including pairs of triangular gusset flaps connecting the sides of said end panels to the ends of said side panels.
Claim 10
Dependent Claim
23 words
The structure of claim 7 and in which said triangular gusset flaps are between said end walls and said end wall liner panels.
References Cited (Backward Citations)
US3034697A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-17 | 1978-09-16 | 1979-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-17 | 1982-09-16 | 1983-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-17 | 1986-09-16 | 1987-03-18 | $7700.00 | Window Closed / Lapsed |