← Back to Patent Explorer
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
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

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

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag