US3744699A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal interlocking flap box
Assignee: Domtar Inc
•
Filing: 1972-05-30
•
Granted: 1973-07-10
•
Expires: 1992-05-30
Abstract
Abstract A carton is closed by a closure member having double fold flaps at its sides or ends which cooperate with corresponding double fold flaps on the tubular section of the carton. The double fold flaps on the closure are interfolded with the double fold flaps on the tubular member to provide a peripheral band about the container with the band extending on the inside of the container thereby to provide an internal cushion. The joint between the tubular member and the closure member is exposed at the end of the container adjacent the corner edge thereof so that a tape may be simply applied over the corner of the container and across the joint to hold the container closed.
Inventors
- 👤 N Burgess
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:54
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/64
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
182 words
A carton comprising a plurality of wall panels defining a sleeve structure, an end closure panel, a first set of double fold flaps, one foldably connected to each of at least a pair of said wall panels at one end of said wall panels, a second set of double fold flaps foldably connected one to each corresponding end of said end closure panel adjacent said ends of said wall panels, each of said double fold flaps having an inner flap and an outer flap, said inner and outer flaps being interconnected by a fold line substantially parallel to the foldable connection between the respective double fold flap and its respective wall panel or end closure panel, flaps of said first set of double fold flaps being interfolded with their corresponding adjacent flaps of said second set so that said inner flaps of said first set of double fold flaps are interposed between said inner and outer flaps of said second set of double fold flaps with said inner flaps of said second set of double fold flaps being innermost of said carton.
Claim 2
Dependent Claim
182 words
A carton comprising a plurality of wall panels defining a sleeve structure, an end closure panel, a first set of double fold flaps, one foldably connected to each of at least a pair of said wall panels at one end of said wall panels, a second set of double fold flaps foldably connected one to each corresponding end of said end closure panel adjacent said ends of said wall panels, each of said double fold flaps having an inner flap and an outer flap, said inner and outer flaps being interconnected by a fold line substantially parallel to the foldable connection between the respective double fold flap and its respective wall panel or end closure panel, flaps of said first set of double fold flaps being interfolded with their corresponding adjacent flaps of said second set so that said inner flaps of said first set of double fold flaps are interposed between said inner and outer flaps of said second set of double fold flaps with said inner flaps of said second set of double fold flaps being innermost of said carton.
Claim 3
Dependent Claim
53 words
A carton as defined in claim 1 wherein a first set of double fold flaps comprises a double fold flap connected to an end of each wall of said sleeve and wherein a second set of double fold flaps comprises a double fold flap connected to each end of said end closure panel.
Claim 4
Dependent Claim
126 words
A carton comprising a plurality of side walls defining a sleeve structure, end closure panel, first double fold flaps projecting from said wall panels, second double fold flaps projecting from said end closure panel, each said double fold flap having an inner and an outer flap said firsT and second double fold flaps being foldably interengaged so that an inner flap of each of said second set of double fold flaps is innermost of said carton, a line of closure between the closure panel and the sleeve structure between said inner flaps of said second flaps and corresponding outer flaps of said first flaps exposed at the end of the carton closed by said closure panel and tapes traversing said line to hold said carton closed.
Claim 5
Dependent Claim
126 words
A carton comprising a plurality of side walls defining a sleeve structure, end closure panel, first double fold flaps projecting from said wall panels, second double fold flaps projecting from said end closure panel, each said double fold flap having an inner and an outer flap said firsT and second double fold flaps being foldably interengaged so that an inner flap of each of said second set of double fold flaps is innermost of said carton, a line of closure between the closure panel and the sleeve structure between said inner flaps of said second flaps and corresponding outer flaps of said first flaps exposed at the end of the carton closed by said closure panel and tapes traversing said line to hold said carton closed.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-07-09 | 1977-01-08 | 1977-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-07-09 | 1981-01-08 | 1981-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-07-09 | 1985-01-08 | 1985-07-10 | $7700.00 | Window Closed / Lapsed |