Patent US3906185A successfully refreshed from Google Patents.
US3906185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heated insole construction
Assignee: COMFORT PRODUCTS Inc
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Filing: 1974-11-07
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Granted: 1975-09-16
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Expires: 1994-11-07
Abstract
Abstract An electrically heated insole construction adapted to be fitted into a shoe or boot, the insole having a layer of plastic mesh material with the openings in the mesh providing air insulation spaces, and a layer of plastic electrically insulated material overlying the mesh material in a toe portion of the insole and having an electrically conductive circuit printed thereon.
Inventors
- 👤 Alexander Louis Gross
- 👤 Erik O Giese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:46
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/26; A; A43; A43B; A43B3/00; A43B3/34; A43B3/35; A43B3/355; H05B2203/00; H05B2203/002; H05B2203/003; H05B2203/013; H05B2203/036
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
97 words
An electrically heated insole construction having a heel area and a toe area adapted to be fitted into a shoe, said insole construction comprising a layer of plastic mesh material with the openings in the mesh material providing air insulation spaces, a layer of electrically insulative plastic material overlying said layer of mesh material in the toe area of the insole, an electrically conductive circuit printed on the side of said insulation material opposite said layer of plastic mesh, and electrical wiring connected to said printed circuit and adapted to extend to a source of electric power.
Claim 2
Dependent Claim
97 words
An electrically heated insole construction having a heel area and a toe area adapted to be fitted into a shoe, said insole construction comprising a layer of plastic mesh material with the openings in the mesh material providing air insulation spaces, a layer of electrically insulative plastic material overlying said layer of mesh material in the toe area of the insole, an electrically conductive circuit printed on the side of said insulation material opposite said layer of plastic mesh, and electrical wiring connected to said printed circuit and adapted to extend to a source of electric power.
Claim 3
Dependent Claim
37 words
An electrically heated insole construction according to claIm 1 wherein said plastic mesh material comprises two layers of fabric-like material separated by a spacing material and wherein said electrical wiring extends between said layers of fabric-like material.
Claim 4
Dependent Claim
43 words
An electrically heated insole construction according to claim 2 wherein said spacing material comprises a corrugated monofiliment extending across the width of said insole and wherein said electrical wiring extends lengthwise of said insole in grooves formed by the corrugation of the monofiliment.
Claim 5
Dependent Claim
30 words
An electrically heated insole construction according to claim 1 having in addition a protective lining overlying said mesh material and said insulative material to provide a lining for said insole.
Claim 6
Dependent Claim
37 words
An electrically heated insole construction according to claim 4 having in addition a layer of pressure-sensitive adhesive on the side of said plastic mesh opposite said insulation material whereby said insole may be affixed in a shoe.
Claim 7
Dependent Claim
31 words
An electrically heated insole construction according to claim 5 having in addition a layer of plastic foam material affixed to the side of said electrically insulative material opposite said conductive circuit.
Claim 8
Dependent Claim
55 words
An electrically heated insole construction according to claim 5 wherein said lining layer comprises a heat sealable plastic film and having in addition a further heat sealable plastic film interposed between said layer of pressure-sensitive adhesive and said layer of mesh material and wherein the heat sealable plastic films are sealed together about their peripheries.
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) | 1978-09-15 | 1979-03-17 | 1979-09-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-15 | 1983-03-17 | 1983-09-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-15 | 1987-03-17 | 1987-09-16 | $7700.00 | Window Closed / Lapsed |