Patent US2389547A successfully refreshed from Google Patents.
Patent US3792810A successfully refreshed from Google Patents.
US3792810A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Easy closure carton
Assignee: Intercontinental Great Brands LLC
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Filing: 1972-03-15
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Granted: 1974-02-19
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Expires: 1992-03-15
Abstract
Abstract A dual snap action, locking carton for cookies, crackers, cereals or other contents which carton may be automatically and repeatedly opened, simply and easily, by lifting with gentle upward pressure a tab or corner of a closure flap over a dual action snap closure formed by carton flaps and webs, and which may be repeatedly closed and positively locked, if desired, by simply applying gentle downward pressure to one or both of the closure flaps.
Inventors
- 👤 W Tingley
- 👤 J Addiego
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:06
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/10; B65D5/103; B65D5/106
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
303 words
In a generally rectangular, paperboard carton having a bottom, four side walls and a top opening, a reclosable closure structure for said top opening comprising: 1. first and second flaps each hingedly joined to the upper edge of opposite side walls and adapted to be folded along each said edge into a plane substantially normal to said side walls to overlap each other and assume a closed position, said first flap being provided with a locking tab and said second flap being provided with a slit for receiving said locking tab when said flaps are moved to closed position; 2. a pair of webs, each of said webs being hingedly joined along hinge lines to a side edge of each of said first and second flaps and also hingedly joined to the upper edge of a side wall contiguous with those to which said first and second flaps are hinged, each of said webs having two lines of weakening extending from each corner formed by the intersection of the upper edges to said side walls to the free edge of said web and at an angle with the upper edge of the side wall to which said web is joined, each said hinge line on one of said webs being shorter than the hinge lines of the other said web, and said weakening lines of the web having the shorter hinge lines being shorter than the weakening lines of said other web, whereby when said flaps are moved to closed position said webs are inwardly folded on said weakening lines and are urged by said flaps into closure locking position with said web having the shorter hinge lines requiring less force to move from the closure locking position to the open position than the force required to so move the other said web.
Claim 2
Dependent Claim
303 words
In a generally rectangular, paperboard carton having a bottom, four side walls and a top opening, a reclosable closure structure for said top opening comprising: 1. first and second flaps each hingedly joined to the upper edge of opposite side walls and adapted to be folded along each said edge into a plane substantially normal to said side walls to overlap each other and assume a closed position, said first flap being provided with a locking tab and said second flap being provided with a slit for receiving said locking tab when said flaps are moved to closed position; 2. a pair of webs, each of said webs being hingedly joined along hinge lines to a side edge of each of said first and second flaps and also hingedly joined to the upper edge of a side wall contiguous with those to which said first and second flaps are hinged, each of said webs having two lines of weakening extending from each corner formed by the intersection of the upper edges to said side walls to the free edge of said web and at an angle with the upper edge of the side wall to which said web is joined, each said hinge line on one of said webs being shorter than the hinge lines of the other said web, and said weakening lines of the web having the shorter hinge lines being shorter than the weakening lines of said other web, whereby when said flaps are moved to closed position said webs are inwardly folded on said weakening lines and are urged by said flaps into closure locking position with said web having the shorter hinge lines requiring less force to move from the closure locking position to the open position than the force required to so move the other said web.
Claim 3
Dependent Claim
203 words
a pair of webs, each of said webs being hingedly joined along hinge lines to a side edge of each of said first and second flaps and also hingedly joined to the upper edge of a side wall contiguous with those to which said first and second flaps are hinged, each of said webs having two lines of weakening extending from each corner formed by the intersection of the upper edges to said side walls to the free edge of said web and at an angle with the upper edge of the side wall to which said web is joined, each said hinge line on one of said webs being shorter than the hinge lines of the other said web, and said weakening lines of the web having the shorter hinge lines being shorter than the weakening lines of said other web, whereby when said flaps are moved to closed position said webs are inwardly folded on said weakening lines and are urged by said flaps into closure locking position with said web having the shorter hinge lines requiring less force to move from the closure locking position to the open position than the force required to so move the other said web.
Claim 4
Dependent Claim
203 words
a pair of webs, each of said webs being hingedly joined along hinge lines to a side edge of each of said first and second flaps and also hingedly joined to the upper edge of a side wall contiguous with those to which said first and second flaps are hinged, each of said webs having two lines of weakening extending from each corner formed by the intersection of the upper edges to said side walls to the free edge of said web and at an angle with the upper edge of the side wall to which said web is joined, each said hinge line on one of said webs being shorter than the hinge lines of the other said web, and said weakening lines of the web having the shorter hinge lines being shorter than the weakening lines of said other web, whereby when said flaps are moved to closed position said webs are inwardly folded on said weakening lines and are urged by said flaps into closure locking position with said web having the shorter hinge lines requiring less force to move from the closure locking position to the open position than the force required to so move the other said web.
Claim 5
Dependent Claim
30 words
In a carton as claimed in claim 1 wherein said first flap is provided with gripping tabs at the ends of the free edge thereof to facilitate opening the carton.
Claim 6
Dependent Claim
14 words
In a carton as claimed in claim 1 wherein said angle is approximately 45*C.
Claim 7
Dependent Claim
19 words
In a carton as claimed in claim 1 wherein said first and second flaps extend beyond both said webs.
Claim 8
Dependent Claim
123 words
In a carton as claimed in claim 1 wherein said carton is made from a blank having a first sealing extension along the side Edge of a side panel at one end of said blank for sealing to the side margin of the side panel positioned at the other end of said blank and a second extension along the side edge of the web hinged to said side panel the first said end of said blank for sealing to the side margin of the flap positioned on said other end of said blank, said extensions being separated by a notch extending from the free edges of said extensions to include a part of the hinge line joining said web and said side panel.
References Cited (Backward Citations)
US3104795A
Cited
US2292653A
Cited
US2307913A
Cited
GB823278A
Cited
US3016181A
Cited
US3244353A
Cited
US3322324A
Cited
US3549081A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-02-18 | 1977-08-20 | 1978-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-02-18 | 1981-08-20 | 1982-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-02-18 | 1985-08-20 | 1986-02-19 | $7700.00 | Window Closed / Lapsed |