US3883067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carton corner construction
Assignee: Continental Can Co Inc
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Filing: 1972-12-15
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Granted: 1975-05-13
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Expires: 1992-12-15
Abstract
Abstract This disclosure relates to improvements in a carton corner construction which includes upstanding adjacent side and end panels and a locking panel joined by a first fold line to the end panel with the latter including interlocking means cooperative with a corner reinforcing panel to maintain the side and end panels in erected condition, the improvement being the provision of fold line means in the corner reinforcing panel for defining a pair of reinforcing panel portions and a third reinforcing panel portion, the pair of reinforcing panel portions being folded into parallel contiguous relationship to each other adjacent, inboard and in reinforcing relationship to the end panel, and the third reinforcing panel portion being folded adjacent, inboard and in reinforcing relationship to the side panel.
Inventors
- 👤 Thomas P Mcglynn
- 👤 Carl H Yentsch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:53
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/20; B65D5/22; B65D5/001; B65D5/0015; B65D5/0045; B65D5/42; B65D5/44; B65D5/441; B65D5/443; B65D5/46; B65D5/46072; B65D5/4608; Y; Y10; Y10S; Y10S229/00; Y10S229/915; Y10S229/919; Y10S229/939
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
220 words
A carton blank comprising a bottom panel defined by spaced first and second parallel fold lines and spaced third and fourth parallel fold lines collectively defining a polygonal area, an end panel connected to said bottom panel at each of said third and fourth fold lines, a side panel connected to said bottom panel at each of said first and second fold lines, a corner reinforcing panel between each adjacent side and end panel, each said corner reinforcing panel having fold line means for folding said corner reinforcing panel portions in parallel contiguous relationship and a third reinforcing panel portion transverse thereto, said fold line means are a pair of spaced parallel fold lines, said pair of panel portions are of substantially equal areas, a locking panel having openings therein joined by a fifth fold line to each end panel, means for directly interlockingly securing each locking panel through said openings to a pair of said reinforcing panel portions adjacent each end panel, said interlocking means including projecting edge portions of both reinforcing panel portions foldable upon each other into substantially co-extensive shape, size and area, and a sixth fold line generally linearly aligned with said fifth fold line at each end panel for securing each third reinforcing panel portion to the adjacent pair of reinforcing panel portions associated therewith.
Claim 2
Dependent Claim
220 words
A carton blank comprising a bottom panel defined by spaced first and second parallel fold lines and spaced third and fourth parallel fold lines collectively defining a polygonal area, an end panel connected to said bottom panel at each of said third and fourth fold lines, a side panel connected to said bottom panel at each of said first and second fold lines, a corner reinforcing panel between each adjacent side and end panel, each said corner reinforcing panel having fold line means for folding said corner reinforcing panel portions in parallel contiguous relationship and a third reinforcing panel portion transverse thereto, said fold line means are a pair of spaced parallel fold lines, said pair of panel portions are of substantially equal areas, a locking panel having openings therein joined by a fifth fold line to each end panel, means for directly interlockingly securing each locking panel through said openings to a pair of said reinforcing panel portions adjacent each end panel, said interlocking means including projecting edge portions of both reinforcing panel portions foldable upon each other into substantially co-extensive shape, size and area, and a sixth fold line generally linearly aligned with said fifth fold line at each end panel for securing each third reinforcing panel portion to the adjacent pair of reinforcing panel portions associated therewith.
Claim 3
Dependent Claim
39 words
The carton blank as defined in claim 1 wherein said securing means include slots in said pair of reinforcing panel portions opening away from the most adjacent of said first and second fold lines and projections therebetween likewise directed.
Claim 4
Dependent Claim
37 words
The carton blank as defined in claim 1 wherein said third reinforcing panel portions and said locking panel of are substantially the same width as measured in a direction parallel to said first and second fold lines.
Claim 5
Dependent Claim
37 words
The carton blank as defined in claim 2 wherein said third reinforcing panel portions and said locking panel of are substantially the same with as measured in a direction parallel to said first and second fold lines.
References Cited (Backward Citations)
US1218353A
Cited
US2572239A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |