Patent US3982685A successfully refreshed from Google Patents.
US3982685A
Expired / Lapsed
US
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Method and device for separating carton layers to open a closed type carton container
Assignee: KINKI PRINTING CO Ltd
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Filing: 1975-09-02
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Granted: 1976-09-28
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Expires: 1995-09-02
Abstract
Abstract A wider and a narrower surface and back half-cut lines are provided adjacent to each other on a wall of a closed carton or container. Carton layers are separated from each other at the surface and back half-cut lines to thereby open the container. When the container is in a closed state, there is no perforated point passing all the way through the wall from the surface to the back or vice versa. Thus, moisture from the outside is prevented from passing into the inside of the container, and yet it is very easy to open the container.
Inventors
- 👤 Yoshiji Shimada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:03
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/54; B65D5/5405; B65D5/542
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
176 words
A dispensing carton having walls defining a hollow enclosure, one of said walls being paperboard and having a first cut line cut from the outside and extending partially through the paperboard, said first cut line extending as a closed loop, a second cut line cut from the inside and extending partially through the paperboard, said second cut line having an open generally loop-like configuration with opposed terminating ends, said second cut line being spaced radially inwardly of a portion of said first cut line, a third cut line cut from the inside and extending partially through the paperboard, said third cut line having an open generally loop-like configuration with opposed terminating ends, said third cut line being spaced radially outwardly of another portion of said first cut line, a pair of generally linear cut lines cut from the inside and partially extending through the paperboard, each of said pair of generally linear cut lines connecting said terminating ends of said second and third cut lines respectively, and a fold line connecting the points where said first
Claim 2
Dependent Claim
176 words
A dispensing carton having walls defining a hollow enclosure, one of said walls being paperboard and having a first cut line cut from the outside and extending partially through the paperboard, said first cut line extending as a closed loop, a second cut line cut from the inside and extending partially through the paperboard, said second cut line having an open generally loop-like configuration with opposed terminating ends, said second cut line being spaced radially inwardly of a portion of said first cut line, a third cut line cut from the inside and extending partially through the paperboard, said third cut line having an open generally loop-like configuration with opposed terminating ends, said third cut line being spaced radially outwardly of another portion of said first cut line, a pair of generally linear cut lines cut from the inside and partially extending through the paperboard, each of said pair of generally linear cut lines connecting said terminating ends of said second and third cut lines respectively, and a fold line connecting the points where said first
Claim 3
Dependent Claim
36 words
A dispensing carton according to claim 1 wherein the loop-like configuration defined by said third cut line is adapted to be folded inwardly about said fold line and doubled back on itself to form a tab
Claim 4
Dependent Claim
13 words
A dispensing carton according to claim 1 wherein said second cut line is
Claim 5
Dependent Claim
22 words
A dispensing carton according to claim 1 wherein the loop-like configuration defined by said first cut line is generally of a slender
Claim 6
Dependent Claim
29 words
A dispensing carton according to claim 1 wherein the longitudinal end of said fold line intersects said linear cut lines at an intermediate position of each linear cut line.
References Cited (Backward Citations)
US2953293A
Cited
US3019944A
Cited
US3021002A
Cited
US3043472A
Cited
US3186623A
Cited
US3185578A
Cited
US3502257A
Cited
US3727750A
Cited
US3854652A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-09-28 | 1980-03-29 | 1980-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-09-28 | 1984-03-29 | 1984-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-09-28 | 1988-03-29 | 1988-09-28 | $7700.00 | Window Closed / Lapsed |