US3795991A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ski boot
Assignee: BOERJESSON BRDR AB
•
Filing: 1973-02-05
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Granted: 1974-03-12
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Expires: 1993-02-05
Abstract
Abstract In a footwear, particularly a ski boot, which has an upper of cellular rubber attached to a sole of plastic material, there are provided leather joining elements in the zones of the toe portion and the heel portion. Each joining element is sewn to the upper and the sole to provide an additional connection between the upper and the sole in the zones most exposed to stress.
Inventors
- 👤 K Borjesson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:38
CPC Classifications
A; A43; A43B; A43B9/00; A43B9/02; A43B5/00; A43B5/04; A43B5/0486; A43B5/0488
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
In a footwear, such as a ski boot, having a toe portion and a heel portion and including an upper of cellular rubber and a sole of plastic material attached to the upper, the improvement, comprising: a. a flexible toe joining element extending in the zone of said toe portion sewn to said upper and said sole, whereby said upper is additionally attached to said sole by said toe joining element; b. a flexible heel joining element extending in the zone of said heel portion sewn to said upper and said sole, whereby said upper is additionally attached to said sole by said heel joining element; and c. seams with which said joining elements are sewn to said upper and said sole; the seams attaching said toe joining element and said heel joining element to said sole extending entirely through said sole.
Claim 2
Dependent Claim
142 words
In a footwear, such as a ski boot, having a toe portion and a heel portion and including an upper of cellular rubber and a sole of plastic material attached to the upper, the improvement, comprising: a. a flexible toe joining element extending in the zone of said toe portion sewn to said upper and said sole, whereby said upper is additionally attached to said sole by said toe joining element; b. a flexible heel joining element extending in the zone of said heel portion sewn to said upper and said sole, whereby said upper is additionally attached to said sole by said heel joining element; and c. seams with which said joining elements are sewn to said upper and said sole; the seams attaching said toe joining element and said heel joining element to said sole extending entirely through said sole.
Claim 3
Dependent Claim
38 words
An improvement as defined in claim 1, further comprising a shank portion adjoining said upper, said shank portion including an envelope of soft skin sewn to said upper and an inlay of soft plastic sandwiched between said envelope.
Claim 4
Dependent Claim
19 words
An improvement as defined in claim 1, wherein said toe joining and heel joining elements are made of leather.
Claim 5
Dependent Claim
30 words
An improvement as defined in claim 1, wherein said toe joining element and said heel joining element have a strip-like configuration and are disposed on the outside of the footwear.
Claim 6
Dependent Claim
20 words
An improvement as defined in claim 1, wherein said upper is made of synthetic styrene/-butadiene-latex foam rubber with closed cells.
Claim 7
Dependent Claim
19 words
An improvement as defined in claim 1, wherein said sole is made of a blockcopolymer of styrene and butadiene.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |