Patent US3287684A successfully refreshed from Google Patents.
US3287684A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical heating device
Assignee: Motson Services Inc
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Filing: 1964-02-27
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Granted: 1966-11-22
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Expires: 1984-02-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Albert Armbruster
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:45
CPC Classifications
H; H05; H05B; H05B3/00; H05B3/02; H05B3/06; H05B3/20; H05B3/22; H05B3/26; H05B2203/00; H05B2203/013; H05B2203/017
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
181 words
AN INTEGRAL ELECTRICAL HEATING DEVICE COMPRISING: AN ELECTRICALLY NON-CONDUCTING SUBSTRATE OF READILY CUTTABLE MATERIAL; A LAYER OF ELECTRICAL RESISTANCE MATERIAL SECURED TO SAID ON-CONDUCTINNG SUBSTRATE; AT LEAST FIRST AND SECOND HEADER BUS BARS SECURED TO SAID NON-CONDUCTING SUBSTRATE, SAID FIRST AND SECOND HEADER BUS BARS LYING ALONG THE SAME EDGE OF SAID LAYER OF ELECTRICAL RESISTANCE MATERIAL AND BEING ADAPTED TO BE CONNECTED TO A POWER SUPPLY; A PLURALITY OF DISTRIBUTION BUS BARS OF PRINTABLE ELECTRICALLY CONDUCTING MATERIAL DISPOSED SUBSTANTIALLY PARALLEL TO EACH OTHER AND IN CONTACT WITH AND ALONG SAID LAYER OF ELECTRICAL RESISTANCE MATERIAL; SAID HEADER BUS BARS AND SAID DISTRIBUTION BUS BAR BEING FABRICATED OF PRINTABLE ELECTRICALLY CONDUCTING MATERIAL; A FIRST GROUP OF SAID PLURALITY OF DISTRIBUTION BUS BARS CONNECTED TO SAID FIRST HEADER BUS BAR AND A SECOND GROUP OF SAID PLURALITY OF DISTRIBUTION BUS BARS CONNECTED TO SAID SECOND HEADER BUS BAR, SAID FIRST GROUP OF DISTRIBUTION BUS BARS TRANSMITTING CURRENT THROUGH SAID ELECTRICAL RESISTANCE MATERIAL TO SAID SECOND GROUP OF DISTRIBUTION BUS BARS TO GENERATE HEAT AS SAID CURRENT PASSES THROUGH SAID ELECTRICAL RESISTANCE MATERIAL.
Claim 2
Dependent Claim
181 words
AN INTEGRAL ELECTRICAL HEATING DEVICE COMPRISING: AN ELECTRICALLY NON-CONDUCTING SUBSTRATE OF READILY CUTTABLE MATERIAL; A LAYER OF ELECTRICAL RESISTANCE MATERIAL SECURED TO SAID ON-CONDUCTINNG SUBSTRATE; AT LEAST FIRST AND SECOND HEADER BUS BARS SECURED TO SAID NON-CONDUCTING SUBSTRATE, SAID FIRST AND SECOND HEADER BUS BARS LYING ALONG THE SAME EDGE OF SAID LAYER OF ELECTRICAL RESISTANCE MATERIAL AND BEING ADAPTED TO BE CONNECTED TO A POWER SUPPLY; A PLURALITY OF DISTRIBUTION BUS BARS OF PRINTABLE ELECTRICALLY CONDUCTING MATERIAL DISPOSED SUBSTANTIALLY PARALLEL TO EACH OTHER AND IN CONTACT WITH AND ALONG SAID LAYER OF ELECTRICAL RESISTANCE MATERIAL; SAID HEADER BUS BARS AND SAID DISTRIBUTION BUS BAR BEING FABRICATED OF PRINTABLE ELECTRICALLY CONDUCTING MATERIAL; A FIRST GROUP OF SAID PLURALITY OF DISTRIBUTION BUS BARS CONNECTED TO SAID FIRST HEADER BUS BAR AND A SECOND GROUP OF SAID PLURALITY OF DISTRIBUTION BUS BARS CONNECTED TO SAID SECOND HEADER BUS BAR, SAID FIRST GROUP OF DISTRIBUTION BUS BARS TRANSMITTING CURRENT THROUGH SAID ELECTRICAL RESISTANCE MATERIAL TO SAID SECOND GROUP OF DISTRIBUTION BUS BARS TO GENERATE HEAT AS SAID CURRENT PASSES THROUGH SAID ELECTRICAL RESISTANCE MATERIAL.
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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) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |