US3957196A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner pad
Assignee: Stone Container Corp
•
Filing: 1975-02-19
•
Granted: 1976-05-18
•
Expires: 1995-02-19
Abstract
Abstract A three dimensional corner pad for shipping containers or the like and blank for making same, wherein a sheet of paperboard is folded about a center fold line which has spacer tabs cut on either side thereof and which is folded at right angles so that these tabs extend outwardly from the fold line to space two inner panels away from two outer panels which are formed by reverse folding same sheet and bring them together. The tabs serve to space the inner panels from the outer panels, and to provide rigidity and cushioning strength to the pad.
Inventors
- 👤 Jack F. Kellerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 11:48
CPC Classifications
B; B65; B65D; B65D5/00; B65D5/42; B65D5/44; B65D5/50; B65D5/5028; B65D5/5033
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
217 words
A blank made from foldable paperboard or similar sheet-like material adapted to be erected into a corner pad for use in cushioning the corners of a container, said blank comprising: a substantially rectangular sheet of said material having parallel top and bottom edges and opposed parallel lateral edges perpendicular to said top and bottom edges; a first fold line extending from said top to said bottom edge near the center of said sheet; said first fold line formed with interruptions, said interruptions comprising spacer tabs defined by three-sided rectangular line cuts extending in both directions away from said first fold line; said blank having a pair of parallel, closely spaced hinge lines located at equal distances on each side of said first fold line thereby defining a pair of inner pad panels, one on each side of said first fold line; said pairs of hinge lines arranged vertically and each said pair defining a narrow intermediate panel extending between each of the hinge lines in each of said pairs of hinge lines; and an outer pad panel at each lateral edge of said blank, said outer pad panels defined by the lateral edges of said blank and the respective adjacent pair of hinge lines, said blank thereby having four large panels and two narrow intermediate spacer panels.
Claim 2
Dependent Claim
217 words
A blank made from foldable paperboard or similar sheet-like material adapted to be erected into a corner pad for use in cushioning the corners of a container, said blank comprising: a substantially rectangular sheet of said material having parallel top and bottom edges and opposed parallel lateral edges perpendicular to said top and bottom edges; a first fold line extending from said top to said bottom edge near the center of said sheet; said first fold line formed with interruptions, said interruptions comprising spacer tabs defined by three-sided rectangular line cuts extending in both directions away from said first fold line; said blank having a pair of parallel, closely spaced hinge lines located at equal distances on each side of said first fold line thereby defining a pair of inner pad panels, one on each side of said first fold line; said pairs of hinge lines arranged vertically and each said pair defining a narrow intermediate panel extending between each of the hinge lines in each of said pairs of hinge lines; and an outer pad panel at each lateral edge of said blank, said outer pad panels defined by the lateral edges of said blank and the respective adjacent pair of hinge lines, said blank thereby having four large panels and two narrow intermediate spacer panels.
Claim 3
Dependent Claim
24 words
The blank of claim 1 including means located on each of said outer panels adapted to connect them together when folded into abutting relationship.
References Cited (Backward Citations)
US621983A
Cited
US2620116A
Cited
AT210348B
Cited
US2979248A
Cited
US3221973A
Cited
US3245602A
Cited
GB1058168A
Cited
US3532263A
Cited
US3613985A
Cited
US3653496A
Cited
US3708101A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-05-18 | 1979-11-17 | 1980-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-18 | 1983-11-17 | 1984-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-18 | 1987-11-17 | 1988-05-18 | $7700.00 | Window Closed / Lapsed |