US4494320A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe outsole
Assignee: 8-TRACK SHOE CORP A CORP OF NY
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Filing: 1982-11-18
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Granted: 1985-01-22
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Expires: 2002-11-18
Abstract
Abstract An outsole (10) for incorporation in a shoe or the like includes a generally shoe-shaped member of rubber-like material lower portion (14) contiguous with the lower surface of having an upper surface and a ground contacting bottom surface (19), the bottom surface (19) having a pair of depressed regions (21), (25) therein positioned for alignment with the heel and the ball of the foot, the bottom surface (19) surrounding the depressions (21), (25) and extending therebetween for supporting the foot about the ball and heel and in the shank region, respectively. In a preferred embodiment, the depressions (21, 25) are generally oval-shaped and concave, and generally triangular indentations (32) are formed in the bottom surface 19 on either side of the shank region (23), the ground contacting bottom surface (19) thereby presenting the general appearance of a figure eight.
Inventors
- 👤 Howard F. Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 06:19
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/18; A43B13/181; A43B13/184; A43B13/22; A43B13/223
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
243 words
An outsole for incorporation in a shoe or the like to be worn on the foot of a user comprising: a generally shoe-shaped member of rubber-like material having an upper surface and a ground contacting bottom surface the ground contacting bottom surface having first and second depressed regions therein; said first depressed region in said bottom surface being located in the real half of said shoe outsole and being of sufficient size to substantially encompass the heel of said user's foot for cushioning same upon ground impact, said first depressed region having a tapered sidewall such that said depressed region is wider at the ground contacting surface thereof than at the top for providing support to the heel of the foot sufficient to prevent excessive downward sagging thereof into said first depressed region upon ground impact; said second depressed region in said bottom surface being located in the front half of said shoe outsole and being of sufficient size to substantially encompass the ball of said user's foot for cushioning same upon ground impact, said second depressed region having a tapered sidewall such that said depressed region is wider at the bottom thereof than at the top for providing support to the ball of the foot sufficient to prevent excessive downward sagging thereof into said second depressed region upon ground impact; the ground contacting bottom surface surrounding said depressions and having a section extending therebetween for supporting the foot in the shank region.
Claim 2
Dependent Claim
243 words
An outsole for incorporation in a shoe or the like to be worn on the foot of a user comprising: a generally shoe-shaped member of rubber-like material having an upper surface and a ground contacting bottom surface the ground contacting bottom surface having first and second depressed regions therein; said first depressed region in said bottom surface being located in the real half of said shoe outsole and being of sufficient size to substantially encompass the heel of said user's foot for cushioning same upon ground impact, said first depressed region having a tapered sidewall such that said depressed region is wider at the ground contacting surface thereof than at the top for providing support to the heel of the foot sufficient to prevent excessive downward sagging thereof into said first depressed region upon ground impact; said second depressed region in said bottom surface being located in the front half of said shoe outsole and being of sufficient size to substantially encompass the ball of said user's foot for cushioning same upon ground impact, said second depressed region having a tapered sidewall such that said depressed region is wider at the bottom thereof than at the top for providing support to the ball of the foot sufficient to prevent excessive downward sagging thereof into said second depressed region upon ground impact; the ground contacting bottom surface surrounding said depressions and having a section extending therebetween for supporting the foot in the shank region.
Claim 3
Dependent Claim
27 words
The outsole according to claim 1, and further comprising a generally triangular pair of indentations in said bottom surface on either side of said shank supporting section.
Claim 4
Dependent Claim
74 words
The outsole according to claim 2, wherein said depressed regions are generally oval-shaped, the defining sidewalls thereof being generally concave with the deepest point of each depressed region being substantially at the center thereof, and wherein the defining walls of said indentations taper upwardly and outwardly from said bottom surface to a junction with the sidewalls of said generally shoe-shaped member, said ground contacting bottom surface having the general appearance of a figure eight.
Claim 5
Dependent Claim
21 words
The outsole according to claim 3, wherein said ground contacting bottom surface further comprises means for preventing slippage during ground engagement.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-22 | 1988-07-23 | 1989-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-22 | 1992-07-23 | 1993-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-22 | 1996-07-23 | 1997-01-22 | $7700.00 | Window Closed / Lapsed |