Patent US3208835A successfully refreshed from Google Patents.
US3208835A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric members
Assignee: Westinghouse Electric Corp
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Filing: 1961-04-27
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Granted: 1965-09-28
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Expires: 1981-04-27
Abstract
No abstract record available.
Inventors
- 👤 Charles S Duncan
- 👤 Herbert L Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:54
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; C23C4/08; C23C4/02; H; H10; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817; H10N10/85; H10N10/851; H10N10/852; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/924; Y10S428/926; Y10S428/9265; Y10S428/931; Y10T; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12528; Y10T428/12771; Y10T428/12778; Y10T428/12986
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A THERMOELECTRIC ELEMENT COMPRISING A BODY OF SEMICONDUCTOR COMPOUND MATERIAL AND AT LEAST TWO SUCCESSIVE RELATIVELY THIN COATINGS ON THE END SURFACES OF THE BODY, EACH OF THE COATINGS BEING OF THE ORDER OF 0.003 INCH IN THICKNESS, THE COATING IN IMMEDIATE CONTACT WITH THE SEMICONDUCTOR COMPOUND MATERIAL SERVING AS A DIFFUSION BARRIER AND BEING SELECTED FROM METALS AND ALLOYS OF THE GROUP CONSISTING OF TUNGSTEN, IRON, MOLYBDENUM, COBALT, NICKEL AND STAINLESS STEEL, AND THE OUTERMOST COATING BEING A METAL AND BEING READILY SOLDERABLE HAVING GOOD ELECTRICAL AND THERMAL CONDUCTIVITY, THE COATINGS HAVING BEEN APPLIED BY PLASMA JET SPRAYING THEM TO SECURE GOOD ADHESION AND BONDING TO EACH OTHER AND TO THE BODY OF MATERIAL IN ORDER TO PROVIDE FOR LOWEST ELECTRICAL RESISTANCE.
Claim 2
Dependent Claim
123 words
A THERMOELECTRIC ELEMENT COMPRISING A BODY OF SEMICONDUCTOR COMPOUND MATERIAL AND AT LEAST TWO SUCCESSIVE RELATIVELY THIN COATINGS ON THE END SURFACES OF THE BODY, EACH OF THE COATINGS BEING OF THE ORDER OF 0.003 INCH IN THICKNESS, THE COATING IN IMMEDIATE CONTACT WITH THE SEMICONDUCTOR COMPOUND MATERIAL SERVING AS A DIFFUSION BARRIER AND BEING SELECTED FROM METALS AND ALLOYS OF THE GROUP CONSISTING OF TUNGSTEN, IRON, MOLYBDENUM, COBALT, NICKEL AND STAINLESS STEEL, AND THE OUTERMOST COATING BEING A METAL AND BEING READILY SOLDERABLE HAVING GOOD ELECTRICAL AND THERMAL CONDUCTIVITY, THE COATINGS HAVING BEEN APPLIED BY PLASMA JET SPRAYING THEM TO SECURE GOOD ADHESION AND BONDING TO EACH OTHER AND TO THE BODY OF MATERIAL IN ORDER TO PROVIDE FOR LOWEST ELECTRICAL RESISTANCE.
References Cited (Backward Citations)
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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) | 1968-09-27 | 1969-03-29 | 1969-09-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-09-27 | 1973-03-29 | 1973-09-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-09-27 | 1977-03-29 | 1977-09-28 | $7700.00 | Window Closed / Lapsed |