Patent US3662945A successfully refreshed from Google Patents.
US3662945A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton end closure
Assignee: Fibreboard Corp
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Filing: 1970-08-03
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Granted: 1972-05-16
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Expires: 1990-08-03
Abstract
Abstract An end closure for a carton comprises adhesively treated major flaps and minor flaps hingedly connected to side and end walls of the carton, respectively. The inner major flap has cutouts formed at the ends thereof to at least substantially accommodate the minor flaps in substantial coplanar relationship therewith when the flaps are folded and sealed together. The outer major flap is adhesively secured over the other flaps and releasably attached to the carton by suitably arranged perforated tear lines to provide an easy opening feature on the carton. A tuck tab is hingedly connected to a free end of the inner major flap to provide means for fully reclosing the carton.
Inventors
- 👤 Thomas W Foster
- 👤 George Schafer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:03
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/701; B65D5/703
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
142 words
A closed, tubular carton comprising opposed first and second side panels, opposed first and second end panels, a bottom closure and a top closure, said top closure comprising first and second minor flaps each hingedly connected at a scoreline to said first and second end panels, respectively, first and second major flaps each hingedly connected to said first and second side panels, respectively means forming first and second cutouts at opposite ends of said first major flap, each cutout substantially conforming to the shape of a respective one of said minor flaps, said first and second minor flaps at least substantially positioned within said first and second cutouts, respectively, to be at least substantially coplanar with respect to said first major flap, said second major flap being folded over and adhesively secured to said first major flap and to said minor flaps.
Claim 2
Dependent Claim
142 words
A closed, tubular carton comprising opposed first and second side panels, opposed first and second end panels, a bottom closure and a top closure, said top closure comprising first and second minor flaps each hingedly connected at a scoreline to said first and second end panels, respectively, first and second major flaps each hingedly connected to said first and second side panels, respectively means forming first and second cutouts at opposite ends of said first major flap, each cutout substantially conforming to the shape of a respective one of said minor flaps, said first and second minor flaps at least substantially positioned within said first and second cutouts, respectively, to be at least substantially coplanar with respect to said first major flap, said second major flap being folded over and adhesively secured to said first major flap and to said minor flaps.
Claim 3
Dependent Claim
20 words
The invention of claim 1 wherein said second major flap completely covers said first major flap and said minor flaps.
Claim 4
Dependent Claim
34 words
The invention of claim 1 further comprising opening means formed at the scoreline connecting said second major flap to said second side panel and in said second side panel for opening said top closure.
Claim 5
Dependent Claim
38 words
The invention of claim 3 wherein the portion of said opening means formed in said second side panel comprises a breakable tab defined by perforations intersecting the scoreline connecting said second major flap to said second side panel.
Claim 6
Dependent Claim
31 words
The invention of claim 3 further comprising a tuck tab hingedly connected at a scoreline to said first major flap to normally abut inner surface portions of said second side panel.
Claim 7
Dependent Claim
56 words
The invention of claim 1 wherein the scorelines connecting said major flaps to said side panels are co-linear and wherein at least one of the scorelines connecting one of said minor flaps to one of said end panels is at least partially offset from said co-linear scorelines toward a free end of said one minor flap.
Claim 8
Dependent Claim
17 words
The invention of claim 6 wherein said offset scoreline is parallel with respect to said co-linear scorelines.
Claim 9
Dependent Claim
22 words
The invention of claim 7 wherein the distance of said offset is substantially equal to the thickness of said one minor flap.
Claim 10
Dependent Claim
49 words
The invention of claim 6 wherein a first end of said offset scoreline is co-linear with the scoreline connecting said first major flap to said first side panel, said offset scoreline extending toward and diverging away from the scoreline connecting said second major flap to said second side panel.
Claim 11
Dependent Claim
54 words
The invention of claim 1 wherein each of said minor flaps are generally trapezoidally shaped, said first minor flap positioned entirely within said first cutout and said second minor flap substantially positioned within said second cutout and having a tab portion on a free end thereof underlying a portion of said first major flap.
Claim 12
Dependent Claim
46 words
The invention of claim 1 wherein said second major flap is substantially rectangular to have a first side edge co-linear with a scoreline connecting said second side panel to said second end panel and a second side edge diverging slightly relative to said first side edge.
Claim 13
Dependent Claim
93 words
A one-piece blank consecutively comprising a first side panel, a first end panel, a second side panel and a second end panel, said panels connected together by parallel scorelines, first and second major flaps respectively connected to said first and second side panels by scorelines and first and second minor flaps respectively connected to said first and second end panels by scorelines and means forming a cutout in each end of said first major flap at least substantially conforming to the entire shape and area of a respective one of said minor flaps.
Claim 14
Dependent Claim
93 words
A one-piece blank consecutively comprising a first side panel, a first end panel, a second side panel and a second end panel, said panels connected together by parallel scorelines, first and second major flaps respectively connected to said first and second side panels by scorelines and first and second minor flaps respectively connected to said first and second end panels by scorelines and means forming a cutout in each end of said first major flap at least substantially conforming to the entire shape and area of a respective one of said minor flaps.
Claim 15
Dependent Claim
41 words
The invention of claim 12 further comprising a tuck tab hingedly connected at a scoreline to said first major flap, said last mentioned scoreline disposed in parallel relationship to the scoreline connecting said first major flap to said first side panel.
Claim 16
Dependent Claim
56 words
The invention of claim 12 wherein the scorelines connecting said major flaps to said side panels are co-linear and wherein at least one of the scorelines connecting one of said minor flaps to one of said end panels is at least partially offset from said co-linear scorelines toward a free end of said one minor flap.
Claim 17
Dependent Claim
17 words
The invention of claim 14 wherein said offset scoreline is parallel with respect to said co-linear scorelines.
Claim 18
Dependent Claim
22 words
The invention of claim 15 wherein the distance of said offset is substantially equal to the thickness of said one minor flap.
Claim 19
Dependent Claim
49 words
The invention of claim 14 wherein a first end of said offset scoreline is co-linear with the scoreline connecting said first major flap to said first side panel, said offset scoreline extending toward and diverging away from the scoreline connecting said second major flap to said second side panel.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-16 | 1975-11-15 | 1976-05-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-16 | 1979-11-15 | 1980-05-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-16 | 1983-11-15 | 1984-05-16 | $7700.00 | Window Closed / Lapsed |