US4134496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for protecting a corner of an article
Assignee: Smurfit Kappa Packaging Corp
•
Filing: 1978-07-03
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Granted: 1979-01-16
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Expires: 1998-07-03
Abstract
Abstract A device for protecting a corner of an article has a pair of main panels and a hollow internal member of substantial L-shape. The panels and the internal member are formed from a single blank of paperboard, or the like, and are interlocked to close the device.
Inventors
- 👤 Richard A. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:34
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/02; B65D81/05; B65D81/053; B65D81/057; B65D2581/00; B65D2581/02; B65D2581/05; B65D2581/051; B65D2581/052; B65D2581/053
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
167 words
A device formed from a blank of paperboard or the like for protecting and cushioning a corner of an article, said device comprising: (a) a pair of main panels of substantially similar size spaced from each other in parallel relationship; (b) an end panel foldably joined at its opposite edges to corresponding edges of respective main panels and extending transversely therebetween; (c) a hollow, substantially L-shaped internal member hinged to an edge of one of said main panels along a fold line disposed normal to said end panel; (d) said internal member having first and second portions each including: (i) inner and outer flaps foldably joined by a connecting flap positioned in parallel relationship to said main panels; (ii) the outer flap of said first portion being foldably connected to the outer flap of said second portion along a hinge line; (iii) said second portion being folded along said hinge line at right angles to said first portion and positioned in contacting engagement with said end panel.
Claim 2
Independent Claim
167 words
A device formed from a blank of paperboard or the like for protecting and cushioning a corner of an article, said device comprising: (a) a pair of main panels of substantially similar size spaced from each other in parallel relationship; (b) an end panel foldably joined at its opposite edges to corresponding edges of respective main panels and extending transversely therebetween; (c) a hollow, substantially L-shaped internal member hinged to an edge of one of said main panels along a fold line disposed normal to said end panel; (d) said internal member having first and second portions each including: (i) inner and outer flaps foldably joined by a connecting flap positioned in parallel relationship to said main panels; (ii) the outer flap of said first portion being foldably connected to the outer flap of said second portion along a hinge line; (iii) said second portion being folded along said hinge line at right angles to said first portion and positioned in contacting engagement with said end panel.
Claim 3
Dependent Claim
28 words
The device as defined in claim 1, wherein one of said main panels has a locking tab, while said internal member has a slot for receiving said tab.
Claim 4
Dependent Claim
36 words
The device as defined in claim 1, wherein each of said first and second portions has a horizontal flap positioned in parallel relationship with said connecting flap and spaced therefrom by said inner and outer flaps.
Claim 5
Dependent Claim
29 words
The device as defined in claim 3, wherein the horizontal flap of said first portion is foldably attached to the horizontal flap of said second portion by a gusset.
Claim 6
Dependent Claim
20 words
The device as defined in claim 4, wherein said gusset is formed from a pair of connected triangular gusset elements.
References Cited (Backward Citations)
US3822036A
Cited
US4000843A
Cited
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 |