Patent US2810085A successfully refreshed from Google Patents.
US4158078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat strip or panel
Assignee: 60478 MANITOBA Ltd
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Filing: 1978-01-13
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Granted: 1979-06-12
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Expires: 1998-01-13
Abstract
Abstract A film of electroconductive particles is impregnated into a glass fiber mat and sandwiched between insulating protecting layers and connectable to source of electrical power so that the entire panel develops heat which is then radiated through the protective panels. Conductive strips are sewn or otherwise secured to the edges of the glass fiber mat and the protecting layers can either be flexible plastic material or alternatively can be rigid panels such as plywood, plasterboard or the like.
Inventors
- 👤 Lambert Egger
- 👤 Hubert Bildstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:07
CPC Classifications
B; B32; B32B; B32B17/00; B32B17/02; B32B17/04; B32B27/00; B32B27/12; H; H05; H05B; H05B3/00; H05B3/20; H05B3/22; H05B3/28; H05B3/283; H05B3/286; H05B3/34; H05B3/36; H05B3/38; B32B2260/00; B32B2260/02; B32B2260/021; B32B2262/00; B32B2262/10; B32B2262/101; B32B2307/00; B32B2307/20; B32B2307/202; B32B2307/206; B32B2607/00; H05B2203/00; H05B2203/011; H05B2203/013; H05B2203/017; H05B2203/021; H05B2203/026; H05B2203/029; H05B2203/032; Y; Y10; Y10S; Y10S428/00; Y10S428/913; Y10T; Y10T428/00; Y10T428/24; Y10T428/24033; Y10T428/24041; Y10T428/30; Y10T428/31504; Y10T428/3154; Y10T428/31544; Y10T428/31786
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
74 words
A heat strip or panel comprising a central flexible glass fibre core impregnated with electroconductive particles, flexible electrical contact strips sewn upon said core in substantially parallel alignment to one another, a cover panel of electrical insulating material laminated one upon each side of said core to enclose said core and said electrical contact strips, and electrical conductors operatively secured to said electrical contact strips and extending beyond the boundaries of said heat strip.
Claim 2
Dependent Claim
74 words
A heat strip or panel comprising a central flexible glass fibre core impregnated with electroconductive particles, flexible electrical contact strips sewn upon said core in substantially parallel alignment to one another, a cover panel of electrical insulating material laminated one upon each side of said core to enclose said core and said electrical contact strips, and electrical conductors operatively secured to said electrical contact strips and extending beyond the boundaries of said heat strip.
Claim 3
Dependent Claim
20 words
The heat strip according to claim 1 in which said electrical contact strips comprise copper tapes sewn to said core.
Claim 4
Dependent Claim
15 words
The heat strip according to claim 1 in which said electrical insulating material is flexible.
Claim 5
Dependent Claim
15 words
The heat strip according to claim 2 in which said electrical insulating material is flexible.
Claim 6
Dependent Claim
21 words
The heat strip according to claim 1 in which said electrical insulating material is formed from substantially rigid panels of plywood.
Claim 7
Dependent Claim
21 words
The heat strip according to claim 2 in which said electrical insulating material is formed from substantially rigid panels of plywood.
Claim 8
Dependent Claim
20 words
The heat strip according to claim 1 in which said central core is formed from flexible woven glass fiber material.
Claim 9
Dependent Claim
20 words
The heat strip according to claim 2 in which said central core is formed from flexible woven glass fiber material.
Claim 10
Dependent Claim
20 words
The heat strip according to claim 3 in which said central core is formed from flexible woven glass fiber material.
Claim 11
Dependent Claim
20 words
The heat strip according to claim 4 in which said central core is formed from flexible woven glass fiber material.
Claim 12
Dependent Claim
20 words
The heat strip according to claim 5 in which said central core is formed from flexible woven glass fiber material.
Claim 13
Dependent Claim
20 words
The heat strip according to claim 6 in which said central core is formed from flexible woven glass fiber material.
References Cited (Backward Citations)
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Cited
US3855051A
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US3863758A
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US3968297A
Cited
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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) | 1982-06-11 | 1982-12-11 | 1983-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-06-11 | 1986-12-11 | 1987-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-06-11 | 1990-12-11 | 1991-06-12 | $7700.00 | Window Closed / Lapsed |