US3918181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sport shoe
Assignee: Onitsuka Co Ltd
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Filing: 1974-07-24
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Granted: 1975-11-11
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Expires: 1994-07-24
Abstract
Abstract A sport shoe comprises a sole and an upper mounted on said sole, wherein a plurality of recesses each with a rounded inner wall surface are provided on the lower surface of said sole for trapping water thereinto and producing anti-slipping effect and a plurality of projections extend downwardly from non-recessed portions of the sole, whereby an athlete is prevented from falling down on an allweather track in the rain or after the rain, and his running speed and jumping force are increased.
Inventors
- 👤 Masanobu Inohara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:25
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/22; A43B13/223; A43B5/00; A43B5/06; A43C; A43C15/00; A43C15/16; A43C15/161
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
78 words
A port shoe comprising a sole and an upper mounted on the sole, the sole having a lower surface provided with a plurality of recesses each having a rounded inner wall surface, and a plurality of first and second projections extending downwardly from non-recessed portions of the lower surface of the sole, each of the first projections having a flat lower surface and each of the second projections being tapered downwardly and being shorter than the first projections.
Claim 2
Dependent Claim
78 words
A port shoe comprising a sole and an upper mounted on the sole, the sole having a lower surface provided with a plurality of recesses each having a rounded inner wall surface, and a plurality of first and second projections extending downwardly from non-recessed portions of the lower surface of the sole, each of the first projections having a flat lower surface and each of the second projections being tapered downwardly and being shorter than the first projections.
Claim 3
Dependent Claim
15 words
The sport shoe of claim 1 wherein each of the recesses has a circular periphery.
Claim 4
Dependent Claim
15 words
The sport shoe of claim 1 wherein each of the recesses has an elliptical periphery.
Claim 5
Dependent Claim
15 words
The sport shoe of claim 1 wherein each of the recesses has a polygonal periphery.
Claim 6
Dependent Claim
38 words
The sport shoe of claim 1 wherein at least some of the recesses has peripheries in the form of elongated circles extending in a direction substantially along the flexion lines of the bone framework of the wearer''s foot.
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) | 1978-11-10 | 1979-05-12 | 1979-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-11-10 | 1983-05-12 | 1983-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-11-10 | 1987-05-12 | 1987-11-11 | $7700.00 | Window Closed / Lapsed |