US3967774A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton lid having easily openable, non-resealable tab
Assignee: Procter and Gamble Co
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Filing: 1975-05-23
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Granted: 1976-07-06
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Expires: 1995-05-23
Abstract
Abstract In a carton employing a turned-under lip along at least a portion of its periphery, an easily openable, non-resealable tab is provided for securing the carton lid to the body of a carton. The tab provides an easy open feature, secures the lid to the body of the carton, provides visual assurance that the carton has not been pilfered and eliminates the cost, nuisance and disposal problems normally associated with prior art overwrap materials and tear-out zippers. The tab requires a very low opening force which is highly reproducible. In addition, the tab is unaffected by minor carton damage. The tab is formed as an integral portion of the carton lid, is easily produced on standard packaging equipment, and, in a particularly preferred embodiment, requires no additional packaging material other than that required to form the carton lid.
Inventors
- 👤 William Edward Querner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:15
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64; B65D5/68
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
163 words
In a carton lid employing a turned under lip along the exposed portions of its periphery to protect the user from injury after initial opening thereof, the improvement comprising an easily openable, non-resealable, pilfer-proof tab for securing said carton lid to the body of the carton, said tab being at least partially formed from the turned under portion of said lip and including a medial tear strip portion defined by a pair of tear lines extending the full depth of said tab, the attached end of said medial tear strip portion having a width substantially equal to that of the line of jointure between said tab and said carton lid, as measured at the attached end of said tab, said tear strip portion having a width less than that of said tab along at least a portion of its length, thereby permitting securement of said tab to said carton body along those portions of said tab outside the medial tear strip portion thereof.
Claim 2
Dependent Claim
163 words
In a carton lid employing a turned under lip along the exposed portions of its periphery to protect the user from injury after initial opening thereof, the improvement comprising an easily openable, non-resealable, pilfer-proof tab for securing said carton lid to the body of the carton, said tab being at least partially formed from the turned under portion of said lip and including a medial tear strip portion defined by a pair of tear lines extending the full depth of said tab, the attached end of said medial tear strip portion having a width substantially equal to that of the line of jointure between said tab and said carton lid, as measured at the attached end of said tab, said tear strip portion having a width less than that of said tab along at least a portion of its length, thereby permitting securement of said tab to said carton body along those portions of said tab outside the medial tear strip portion thereof.
Claim 3
Dependent Claim
61 words
The carton lid of claim 1, wherein said medial tear strip portion has a width substantially equal to that of the line of jointure between said tab and said carton lid, as measured at the attached end of said tab, and a width less than that of said tab, as measured at the free end of said medial tear strip portion.
Claim 4
Dependent Claim
14 words
The carton lid of claim 1, wherein said tear lines are comprised of perforations.
Claim 5
Dependent Claim
37 words
The carton lid of claim 1, wherein a notch is provided at the intersection of each tear line with the free end of said tab to facilitate identification of the medial tear strip portion of said tab.
Claim 6
Dependent Claim
40 words
The carton lid of claim 4, wherein a score line interconnecting the innermost ends of said notches is provided across the medial tear strip portion of said tab to facilitate grasping the exposed edge of said medial tear strip portion.
Claim 7
Dependent Claim
45 words
The carton lid of claim 1, wherein a score line is provided along the line of jointure between said tab and said carton lid to permit utilization of said line of jointure as a hinge between said carton lid and the body of a carton.
Claim 8
Dependent Claim
39 words
The carton lid of claim 1, wherein perforations are provided along the line of jointure between said tab and said carton lid to permit removal of said tab from said carton lid after opening thereof along said tear lines.
Claim 9
Dependent Claim
44 words
The carton lid of claim 1, wherein said tab is formed exclusively from the turned under portion of the lip of said carton lid and the line of jointure between said tab and said carton lid coincides with the exposed edge of said lip.
Claim 10
Dependent Claim
27 words
The carton lid of claim 1, wherein a tab is provided at opposite ends thereof for securing both ends of said carton lid to a carton body.
Claim 11
Dependent Claim
21 words
The carton lid of claim 1, wherein at least one end thereof is integrally attached to the body of a carton.
References Cited (Backward Citations)
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Cited
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US3310223A
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US3392905A
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US3523636A
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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) | 1979-07-06 | 1980-01-05 | 1980-07-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-06 | 1984-01-05 | 1984-07-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-06 | 1988-01-05 | 1988-07-06 | $7700.00 | Window Closed / Lapsed |