US3558035A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Imperforate carton with integral handles
Assignee: Baltimore Box Co
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Filing: 1968-06-03
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Granted: 1971-01-26
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Expires: 1988-06-03
Abstract
Abstract An improved carton which includes a one-piece bottom wall and carrying handles which do not require openings communicating with the interior thereof, and the blank from which the carton is assembled. The carton is fabricated from a unitary blank which includes a series of successively hingedly connected parallelogram panels which form the bottom wall, a pair of opposed side walls, and the top wall. The panel forming the bottom wall has a given width, while the top wall is formed of two panels, each of a width determined by considerations of whether they overlap, gap, or just meet. The sidewall forming panels each have a first flap panel at each end thereof which fold inwardly to form a pair of opposed end walls. At each end of the bottom wall-forming panel is a second flap panel which fold inwardly to overlie the first flap panels and is secured thereto. The upper portion of the second flap panel can be folded outwardly upon itself and secured thereto to form handles. The first flap panels each have a third flap panel hingedly attached thereto which fold inwardly to form top securing flaps.
Inventors
- 👤 Douglass M Stegner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 11:53
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/28
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
229 words
A unitary carton blank comprising first, second, third, fourth and fifth successively hingedly joined parallelogram wallforming panels, said third panel adapted to form the bottom wall of the carton, said second and fourth panels adapted to form the side walls of said carton, said first and fifth panels adapted to form the top wall of the carton; a first flap panel hingedly joined to each end of said second and fourth panels and adapted to form an end wall of said carton; a second flap panel hingedly joined to each end of said third panel and adapted to overlie said first flap panels forming said end walls; a third flap panel hingedly joined to each of said first flap panels of said second and fourth panels adjacent to and coextensive with said first and fifth panels respectively and separated therefrom by a slit; and handle means on each of said second flap panels defined by a score line extending across the full width of each of said second flap panels, whereby said handle means may be folded outwardly and downwardly from said second flap panels when said blank is folded to form the carton; each of said first flap panels being separated from the adjacent second flap panels by a slit; said wall-forming panels being hingedly joined to each other and to the respective flap panels by fold lines.
Claim 2
Dependent Claim
229 words
A unitary carton blank comprising first, second, third, fourth and fifth successively hingedly joined parallelogram wallforming panels, said third panel adapted to form the bottom wall of the carton, said second and fourth panels adapted to form the side walls of said carton, said first and fifth panels adapted to form the top wall of the carton; a first flap panel hingedly joined to each end of said second and fourth panels and adapted to form an end wall of said carton; a second flap panel hingedly joined to each end of said third panel and adapted to overlie said first flap panels forming said end walls; a third flap panel hingedly joined to each of said first flap panels of said second and fourth panels adjacent to and coextensive with said first and fifth panels respectively and separated therefrom by a slit; and handle means on each of said second flap panels defined by a score line extending across the full width of each of said second flap panels, whereby said handle means may be folded outwardly and downwardly from said second flap panels when said blank is folded to form the carton; each of said first flap panels being separated from the adjacent second flap panels by a slit; said wall-forming panels being hingedly joined to each other and to the respective flap panels by fold lines.
Claim 3
Dependent Claim
53 words
A unitary carton blank as defined in claim 1, wherein said third panel has a given width and each of said first and fifth panels has a width equal to one half of said given width, whereby said first and fifth panels will abut to form the top wall of the assembled carton.
Claim 4
Dependent Claim
57 words
A unitary carton blank as defined in claim 1, wherein said third panel has a given width aNd each of said first and fifth panels has a width greater than one half of said given width by an amount sufficient to provide an overlap between said first and fifth panels when said carton is in assembled condition.
Claim 5
Dependent Claim
211 words
A parallelogram carton formed from a unitary carton blank, said carton comprising a bottom wall, a pair of opposed side walls and a pair of opposed end walls extending upwardly from said bottom wall, and a top wall; said top wall comprising a pair of panels hingedly joined to the upper edges of said pair of side walls by a fold line; each of said end walls comprising a pair of first flap panels hingedly joined to said walls by a fold line and folded inwardly, and a second flap panel hingedly joined to said bottom wall by a fold line and folded inwardly in overlying relation with said first flap panels and secured thereto; a closure flap joined to each of said first flap panels and extending upwardly therefrom and adapted to be folded inwardly along a fold line to underlie said top wall; and handle means defined by a score line on each of said second flap panels parallel to the top edge thereof and extending across the full width of each of said second flap panels, said second flap panels being folded outwardly and downwardly along said score line to thereby form a handle portion overlying at least a portion of said second flap panel and secured thereto.
Claim 6
Dependent Claim
211 words
A parallelogram carton formed from a unitary carton blank, said carton comprising a bottom wall, a pair of opposed side walls and a pair of opposed end walls extending upwardly from said bottom wall, and a top wall; said top wall comprising a pair of panels hingedly joined to the upper edges of said pair of side walls by a fold line; each of said end walls comprising a pair of first flap panels hingedly joined to said walls by a fold line and folded inwardly, and a second flap panel hingedly joined to said bottom wall by a fold line and folded inwardly in overlying relation with said first flap panels and secured thereto; a closure flap joined to each of said first flap panels and extending upwardly therefrom and adapted to be folded inwardly along a fold line to underlie said top wall; and handle means defined by a score line on each of said second flap panels parallel to the top edge thereof and extending across the full width of each of said second flap panels, said second flap panels being folded outwardly and downwardly along said score line to thereby form a handle portion overlying at least a portion of said second flap panel and secured thereto.
Claim 7
Dependent Claim
19 words
A carton as defined in claim 4, wherein said pair of panels forming said top wall overlap each other.
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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) | 1974-01-25 | 1974-07-27 | 1975-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-25 | 1978-07-27 | 1979-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-25 | 1982-07-27 | 1983-01-26 | $7700.00 | Window Closed / Lapsed |