Patent US2351623A successfully refreshed from Google Patents.
US3924801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton for refrigerated consumable products
Assignee: Stone Container Corp
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Filing: 1974-07-11
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Granted: 1975-12-09
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Expires: 1994-07-11
Abstract
Abstract A closeable carton and blank for forming the carton. The carton has cooperating tabs and fingers for releasably locking together a pair of walls for closing the carton. Hinged flaps are provided in one wall adjacent the locking fingers which enable the said flaps to be pivoted to a position allowing access to said fingers for locking and unlocking said walls. The carton also includes cooperating, spaced apart inner and outer side walls providing an air cell or space therebetween of truncated triangular cross section so as to achieve greater side wall strength.
Inventors
- 👤 James H Partain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:01
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/46; B65D5/46072; B65D5/4608; B65D5/18; B65D5/64; B65D5/66; B65D5/6626; B65D5/665; B65D5/6655
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
191 words
A paperboard carton formed from a unitary blank including: a. an upwardly opening tray having a closure wall hingedly connected along the edge of a first wall of the tray, b. said closure wall having at least one locking tab depending from a free edge thereof, c. said tray having a second wall transverse to said closure wall and arranged to be releasably locked therewith for closing the carton, said second wall having at least one locking finger integral therewith having a first portion pivotally attached thereto which is movable to a position flush with said second wall and a second portion extending transverse to said first portion into the interior of carton and adapted to cooperably engage said locking tab for releasably locking the carton in a closed condition, said second wall having integral hinged flaps adjacent said first portion arranged to be pivoted to a position exposing said locking finger sufficiently to permit same to be manually gripped when flush with the second wall, thereby enabling said finger to be moved relative to the tab for locking and unlocking the closure and second walls one relative to the other.
Claim 2
Dependent Claim
191 words
A paperboard carton formed from a unitary blank including: a. an upwardly opening tray having a closure wall hingedly connected along the edge of a first wall of the tray, b. said closure wall having at least one locking tab depending from a free edge thereof, c. said tray having a second wall transverse to said closure wall and arranged to be releasably locked therewith for closing the carton, said second wall having at least one locking finger integral therewith having a first portion pivotally attached thereto which is movable to a position flush with said second wall and a second portion extending transverse to said first portion into the interior of carton and adapted to cooperably engage said locking tab for releasably locking the carton in a closed condition, said second wall having integral hinged flaps adjacent said first portion arranged to be pivoted to a position exposing said locking finger sufficiently to permit same to be manually gripped when flush with the second wall, thereby enabling said finger to be moved relative to the tab for locking and unlocking the closure and second walls one relative to the other.
Claim 3
Dependent Claim
44 words
The carton of claim 1 wherein said locking tab is hingedly connected to said closure wall along a fold line and extends transverse to said closure wall, said locking tab having a slot therethrough arranged to receive said second part of the locking finger.
Claim 4
Dependent Claim
106 words
The carton of claim 1 wherein said second wall includes a third wall part and a fourth part one adjacent the other and separated by a first fold line, said fourth part being transverse to said third part, said locking finger being struck from said second wall so as to form a cutout therein with said first portion hingedly attached to said third part at one end of said finger, said first portion extending to a second fold line substantially co-linear with said first fold line, said second portion extending from said second fold line to a free edge thereof in the interior of said carton.
Claim 5
Dependent Claim
22 words
The carton of claim 3 wherein said first fold line is cut through a predetermined distance adjacent said finger forming a slot.
Claim 6
Dependent Claim
79 words
The carton of claim 4 wherein said flaps have a first free edge of said third part adjacent said finger first portion, said first free edge being an edge of said cutout, a second free edge of said third part forming one side of said slot a predetermined distance adjacent said finger and intersecting said first free edge at one end, and a line or reduced strength extending between the other ends of said first and second free edges.
Claim 7
Dependent Claim
21 words
The carton of claim 3 wherein said closure wall overlies said third wall part in the closed condition of the carton.
Claim 8
Dependent Claim
25 words
The carton of claim 4 wherein said locking tab is engaged in said slot and said cutout and said finger is engaged through said tab.
Claim 9
Dependent Claim
63 words
The carton of claim 1 wherein said tray has a pair of opposite side walls of substantially identical construction, each side wall extending between said closure wall and wall opposite said closure wall and formed of a pair of side wall layers spaced one from the other and divergent toward said closure wall to provide a cell space of generally triangular cross section.
Claim 10
Dependent Claim
175 words
A closeable carton of rectangular configuration formed of paperboard and including, a first wall having a first edge hingedly connEcted to a second wall and at least one second edge having locking tabs secured thereto, a third wall positioned in a plane transverse to the plane of said first wall and adapted to be mated with said first wall for closing said carton, said third wall having locking fingers formed therein each having a first portion hingedly secured to said third wall and adapted to be seated flush with the plane thereof, and a second portion secured to said first portion and extending transverse to said first portion in the interior of said carton, said second portion adapted to be mated with said tabs when said carton is closed, and flaps formed in said third wall adjacent said first portion and hingedly attached to said third wall at a first fold line for allowing access to said finger first portion whereby said fingers first portion can be pivoted for releasably interlocking said fingers and tabs.
Claim 11
Dependent Claim
175 words
A closeable carton of rectangular configuration formed of paperboard and including, a first wall having a first edge hingedly connEcted to a second wall and at least one second edge having locking tabs secured thereto, a third wall positioned in a plane transverse to the plane of said first wall and adapted to be mated with said first wall for closing said carton, said third wall having locking fingers formed therein each having a first portion hingedly secured to said third wall and adapted to be seated flush with the plane thereof, and a second portion secured to said first portion and extending transverse to said first portion in the interior of said carton, said second portion adapted to be mated with said tabs when said carton is closed, and flaps formed in said third wall adjacent said first portion and hingedly attached to said third wall at a first fold line for allowing access to said finger first portion whereby said fingers first portion can be pivoted for releasably interlocking said fingers and tabs.
Claim 12
Dependent Claim
91 words
The carton of claim 9 wherein said fingers are struck from said third wall so as to form a cutout in said third wall defined by edges of said third wall, said flaps having a first free edge adjacent said finger first portion, said first free edge being a cutout edge, said flaps further having a second free edge extending transverse to said first free edge and intercepting said first free edge at one end, said first fold line extending between the other ends of said first and second free edges.
Claim 13
Dependent Claim
21 words
The carton of claim 10 wherein said first and second free edges and said first fold line define a triangular-shaped flap.
Claim 14
Dependent Claim
33 words
The carton of claim 10 wherein said locking tabs extend transverse to said first wall and have slots formed therein, said finger second portions extending into said slots when said carton is closed.
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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) | 1978-12-08 | 1979-06-09 | 1979-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-08 | 1983-06-09 | 1983-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-08 | 1987-06-09 | 1987-12-09 | $7700.00 | Window Closed / Lapsed |