US4134533A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stackable container
Assignee: Smurfit Kappa Packaging Corp
•
Filing: 1977-12-19
•
Granted: 1979-01-16
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Expires: 1997-12-19
Abstract
Abstract A shipping container having stacking tabs projecting upwardly from certain walls thereof for receipt within openings in lower portions of similar containers.
Inventors
- 👤 William D. Heavner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:49
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/001; B65D5/0015; B65D5/003; Y; Y10; Y10S; Y10S229/00; Y10S229/915
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
162 words
In a stackable container formed of a unitary blank of foldable paperboard, the combination of: (a) a bottom wall; (b) pairs of opposed side and end walls foldably joined to and upstanding from opposed side and end edges of said bottom wall; (c) said end walls each including an outer panel joined at its lower edge to said bottom wall and an inner panel joined at its upper edge to the upper edge of said outer panel; (d) said end walls having stacking tabs projecting upwardly therefrom adapted to be received within related recesses in the lower portion of a similar container to prevent lateral movement therebetween when containers are stacked; (e) each of said recesses including an opening extending completely through an end wall outer panel and a depressed area of reduced thickness in the related end wall inner panel aligned with said opening; (f) means for joining adjacent ends of side and end walls at the corners of the container.
Claim 2
Dependent Claim
162 words
In a stackable container formed of a unitary blank of foldable paperboard, the combination of: (a) a bottom wall; (b) pairs of opposed side and end walls foldably joined to and upstanding from opposed side and end edges of said bottom wall; (c) said end walls each including an outer panel joined at its lower edge to said bottom wall and an inner panel joined at its upper edge to the upper edge of said outer panel; (d) said end walls having stacking tabs projecting upwardly therefrom adapted to be received within related recesses in the lower portion of a similar container to prevent lateral movement therebetween when containers are stacked; (e) each of said recesses including an opening extending completely through an end wall outer panel and a depressed area of reduced thickness in the related end wall inner panel aligned with said opening; (f) means for joining adjacent ends of side and end walls at the corners of the container.
Claim 3
Dependent Claim
46 words
A container according to claim 1, wherein the means for joining side and end walls at each corner of the container include a connecting flap foldably joined to one of said side and end walls and secured to the other of said side and end walls.
Claim 4
Dependent Claim
37 words
A container according to claim 1, and including cover panels foldably joined to upper edges of respective side walls and adapted to be folded inwardly and normally thereto to close at least a portion of the container.
Claim 5
Dependent Claim
34 words
A container according to claim 3, wherein said cover panels each include a pair of ears foldably joined to opposite end edges thereof and folded downwardly to overly adjacent areas of related end walls.
Claim 6
Dependent Claim
26 words
A container according to claim 3, wherein each of said cover panels includes openings at opposite ends thereof for receiving stacking tabs of related end walls.
References Cited (Backward Citations)
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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) | 1982-01-15 | 1982-07-17 | 1983-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-15 | 1986-07-17 | 1987-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-15 | 1990-07-17 | 1991-01-16 | $7700.00 | Window Closed / Lapsed |