Patent US3728804A successfully refreshed from Google Patents.
US3728804A
Expired / Lapsed
US
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Ski boot
Assignee: Hope KK
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Filing: 1971-07-09
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Granted: 1973-04-24
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Expires: 1991-07-09
Abstract
Abstract In a ski boot which outer shell comprises a rigid lower shell enclosing substantial portions of a foot, and a rigid upper shell in the form of an ankle cuff connected to the lower shell, the upper shell is movable to a forwardly outwardly inclined position relative to a boot sole. The movement of said upper shell substantially corresponds to an anatomically natural movement of a user''s leg about an ankle.
Inventors
- 👤 Y Mochizuki
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:31
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0427; A43B5/0452; A43B5/0454; A43B5/0458
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
82 words
A ski boot comprising a rigid lower shell enclosing major portions of a foot, a rigid upper shell in the form of a shell enclosing an ankle, and an inner and an outer pivot means connecting said upper shell with said lower shell, said inner pivot means being nearer to the boot toe than said outer pivot means so that said upper shell may be movable to a forward position corresponding to an anatomically natural movement of a leg about the ankle.
Claim 2
Dependent Claim
82 words
A ski boot comprising a rigid lower shell enclosing major portions of a foot, a rigid upper shell in the form of a shell enclosing an ankle, and an inner and an outer pivot means connecting said upper shell with said lower shell, said inner pivot means being nearer to the boot toe than said outer pivot means so that said upper shell may be movable to a forward position corresponding to an anatomically natural movement of a leg about the ankle.
Claim 3
Dependent Claim
57 words
A ski boot as claimed in claim 1. wherein said upper shell is connected to said lower shell by inner and outer pivots, said inner pivot being nearer to the boot toe and slightly higher than said outer pivot, said inner and outer pivots being substantially in the same relative position as inner and outer ankle bones.
Claim 4
Dependent Claim
43 words
A ski boot as claimed in claim 1, wherein said upper shell moves forwardly outwardly along a vertical plane which is about 20* with respect to a vertical plane passing through a longitudinal center line of a boot sole of said lower shell.
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) | 1976-04-23 | 1976-10-23 | 1977-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-23 | 1980-10-23 | 1981-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-23 | 1984-10-23 | 1985-04-24 | $7700.00 | Window Closed / Lapsed |