US4019673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cardboard box
Assignee: GLADU AG
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Filing: 1976-04-02
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Granted: 1977-04-26
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Expires: 1996-04-02
Abstract
Abstract A cardboard box, provided with an outlet opening in a multilayered wall portion, which is closed by means of a closing lip which can be swung open and reclosed and which is formed from a plurality of layers of box material that have been glued together, wherein the closing lip, having been opened, is clampingly reclosable on account of the fact that this closing lip, when swung back to the reclosed position, is capable of being pressed farther into the box over the whole width of its free end than in the original closed position.
Inventors
- 👤 Arnold Salomons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 08:24
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/70; B65D5/701
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
122 words
A cardboard box comprising a three layered wall portion provided with an outlet opening, a closing lip which can be swung open and reclosed to open and close said outlet opening, said lip being constituted by the three layers of material of the box that have been glued together, the middle closing-lip layer being bounded by a cutout portion and being shorter and narrower than the outer and inner closing-lip layers, so that the closing lip, after having been opened, is clampingly reclosable since said closing lip, when swung back to the reclosed position, is capable of being pressed over the entire width of its free end, one layer of box material farther into the box than in the original closed position.
Claim 2
Dependent Claim
122 words
A cardboard box comprising a three layered wall portion provided with an outlet opening, a closing lip which can be swung open and reclosed to open and close said outlet opening, said lip being constituted by the three layers of material of the box that have been glued together, the middle closing-lip layer being bounded by a cutout portion and being shorter and narrower than the outer and inner closing-lip layers, so that the closing lip, after having been opened, is clampingly reclosable since said closing lip, when swung back to the reclosed position, is capable of being pressed over the entire width of its free end, one layer of box material farther into the box than in the original closed position.
Claim 3
Dependent Claim
26 words
A box according to claim 1 wherein the inner layer contains weakening lines which are substantially perpendicular to the fold line of the inner closing-lip layer.
References Cited (Backward Citations)
US1712249A
Cited
US2105547A
Cited
GB603543A
Cited
US2979249A
Cited
US3147905A
Cited
US3395848A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-25 | 1980-10-25 | 1981-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-25 | 1984-10-25 | 1985-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-25 | 1988-10-25 | 1989-04-26 | $7700.00 | Window Closed / Lapsed |