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US4246707A
Expired / Lapsed
US
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Convertible overshoes
Assignee: Individual
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Filing: 1980-03-27
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Granted: 1981-01-27
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Expires: 2000-03-27
Abstract
Abstract A reversible shoe boot is provided with one sole having normal slip resistance and when turned inside out the second sole surface with ice slip resistance with a semi-rigid inner sole protecting the feet and the slip resistance surface.
Inventors
- 👤 Frank Pedersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:05
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/14; A43B13/22; A43B13/223; A43B13/226; A43B3/00; A43B3/16; A43B3/24
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
Convertible rubber footwear comprising: (a) a reversible shoe boot with a sole portion having two surfaces, wherein the shoe boot turned inside out forms essentially the same shape, wherein the first surface has imbedded therein an abrasion means which will essentially prevent sliding on ice, and wherein the second surface is provided with a standard non-slip surface, and (b) an innersole of a shape to fit inside the shoe boot covering the inside of the sole portion, with the innersole having an upper surface of a semi-rigid material capable of holding the interior shape of the sole and a lower softer surface of a material that will not deteriorate the abrasion means.
Claim 2
Dependent Claim
112 words
Convertible rubber footwear comprising: (a) a reversible shoe boot with a sole portion having two surfaces, wherein the shoe boot turned inside out forms essentially the same shape, wherein the first surface has imbedded therein an abrasion means which will essentially prevent sliding on ice, and wherein the second surface is provided with a standard non-slip surface, and (b) an innersole of a shape to fit inside the shoe boot covering the inside of the sole portion, with the innersole having an upper surface of a semi-rigid material capable of holding the interior shape of the sole and a lower softer surface of a material that will not deteriorate the abrasion means.
Claim 3
Dependent Claim
24 words
The convertible rubber footwear of claim 1 wherein the first surface has sharp inorganic particulate imbedded in the surface to provide the abrasion means.
Claim 4
Dependent Claim
23 words
The convertible rubber footwear of claim 1 wherein the second surface has a pattern molded in rubber to reduce slipping on wet surfaces.
Claim 5
Dependent Claim
20 words
The convertible rubber footwear of claim 1 wherein the first surface has sharpened metal studs imbedded in the surface rubber.
Claim 6
Dependent Claim
22 words
The convertible rubber footwear of claim 1 wherein the innersole is a semirigid plastic sheet bonded to a soft resilient polymer foam.
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) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |