US3568917A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton having an end closure label
Assignee: Pneumatic Scale Corp
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Filing: 1968-07-17
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Granted: 1971-03-09
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Expires: 1988-07-17
Abstract
Abstract A carton having a separate end closure label or covering adhesively secured to the ends thereof primarily for the purpose of covering and closing any pinhole openings at corners or other areas of conventional carton end closures whereby to prevent leakage of finely divided materials and to prevent entrance of air or moisture.
Inventors
- 👤 Robert W Vergobbi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:24
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/02; B65D5/12; B65D5/42
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
160 words
As a new article of manufacture, a rectangular carton having an end closure including a separate sheet of flexible material adhesively secured to the end of the carton, said sheet having an end closing panel and integral side end wall engaging flaps, said sheet having its corners cut off at an angle, end closing panel being defined By lines connecting the inner portions of said end closing panel having an area greater than the area at the end of the carton and extending a short distance beyond the marginal edges of the lines defining the end of the carton to which it is applied, each angular cutoff line passing through an adjacent intersecting point of the lines defining said end closing panel area, said marginal extended portions being folded over said edges and the corners of the carton together with side and end wall engaging flaps whereby to close and seal any minute openings at said edges and said corners.
Claim 2
Dependent Claim
160 words
As a new article of manufacture, a rectangular carton having an end closure including a separate sheet of flexible material adhesively secured to the end of the carton, said sheet having an end closing panel and integral side end wall engaging flaps, said sheet having its corners cut off at an angle, end closing panel being defined By lines connecting the inner portions of said end closing panel having an area greater than the area at the end of the carton and extending a short distance beyond the marginal edges of the lines defining the end of the carton to which it is applied, each angular cutoff line passing through an adjacent intersecting point of the lines defining said end closing panel area, said marginal extended portions being folded over said edges and the corners of the carton together with side and end wall engaging flaps whereby to close and seal any minute openings at said edges and said corners.
Claim 3
Dependent Claim
14 words
A carton as defined in claim 1 wherein the corner cutoff angle equals 45*.
Claim 4
Dependent Claim
28 words
A carton as defined in claim 1 wherein the portions of the end closing panel folded over the corners of the carton are crimped about their respective corners.
References Cited (Backward Citations)
US2197739A
Cited
US2198119A
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US2428845A
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US2470984A
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US2540321A
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US2719663A
Cited
US2847151A
Cited
US2850222A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-03-08 | 1974-09-07 | 1975-03-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-08 | 1978-09-07 | 1979-03-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-08 | 1982-09-07 | 1983-03-09 | $7700.00 | Window Closed / Lapsed |