US4015347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insoles effective for curing and preventing athlete's foot
Assignee: Individual
•
Filing: 1975-11-14
•
Granted: 1977-04-05
•
Expires: 1995-11-14
Abstract
Abstract An insole which is prepared by providing a metallic layer consisting of silver, copper or an alloy of these metals on the surface of a base constituting said insole or an insole prepared by molding a plastic material containing metallic particles of silver, copper or an alloy of these metals, is effective for treating as well as preventing athlete's foot.
Inventors
- 👤 Kazuyoshi Morishita
- 👤 Nobuhiko Furukawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 05:19
CPC Classifications
A; A43; A43B; A43B1/00; A43B1/0045; A43B17/00; A43B17/04; A43B17/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
50 words
An insolve comprising a sheet of material having substantially the contour of a human foot or a portion of a human foot, said material comprising a moldable plastic having dispersed therein particles of a metal selected from the group consisting of silver, alloys of silver, copper and alloys of copper.
Claim 2
Dependent Claim
50 words
An insolve comprising a sheet of material having substantially the contour of a human foot or a portion of a human foot, said material comprising a moldable plastic having dispersed therein particles of a metal selected from the group consisting of silver, alloys of silver, copper and alloys of copper.
Claim 3
Dependent Claim
13 words
An insole according to claim 1 having a multiplicity of holes extending therethrough.
Claim 4
Dependent Claim
14 words
An insole according to claim 1, wherein said plastic consists of flexible thermoplastic resin.
Claim 5
Dependent Claim
13 words
An insole according to claim 1, wherein said plastic consists of thermo-setting resin.
Claim 6
Dependent Claim
28 words
An insole according to claim 1, wherein said plastic consists of a material selected from the group consisting of natural rubber, synthetic rubber, pulp and pulplike synthetic fiber.
Claim 7
Dependent Claim
39 words
An insolve according to claim 1, wherein said plastic also has dispersed therein particles of a filler selected from the group consisting of calcium carbonate, diatomaceous earth, titanium oxide, fragments of natural leather, pulverized wood, pulp and fibrous substances.
Claim 8
Dependent Claim
10 words
An insole according to claim 1, having an undulating surface.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-04-04 | 1980-10-04 | 1981-04-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-04 | 1984-10-04 | 1985-04-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-04 | 1988-10-04 | 1989-04-05 | $7700.00 | Window Closed / Lapsed |