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US2921973A
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Thermoelements and devices embodying them
Assignee: Westinghouse Electric Corp
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Filing: 1957-04-16
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Granted: 1960-01-19
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Expires: 1977-04-16
Abstract
No abstract record available.
Inventors
- 👤 Robert R Heikes
- 👤 William D Johnston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:47
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A THERMOELECTRIC DEVICE COMPRISING ONE MEMBER OF A HOMOGENEOUS SOLID HAVING THE FORMULA LIMTN1-M,X WHERE T REPRESENTS AT LEAST ONE TRANSITION METAL FROM THE GROUP CONSISTING OF MANGANESE, IRON, NICKEL, COLBAT, COPPER AND ZINC, X REPRESENTS A CHALCOGENIDE FROM THE GROUP CONSISTING OF OXYGEN, SULFUR, SELENIUM AND TELLURIUM, AND M HAS A VALUE NOT EXCEEDING 0.1 AND NOT LESS THAN 0.001 AND ANOTHER MEMBER ELECTRICALLY CONNECTED TO ONE PORTION OF THE SAID ONE MEMBER, SAID ANOTHER MEMBER COMPOSED OF A HOMOGENEOUS SOLID HAVING THE FORMULA ALAT(1-N)X WHERE N IS FROM 0.1 TO 0.001.
Claim 2
Dependent Claim
93 words
A THERMOELECTRIC DEVICE COMPRISING ONE MEMBER OF A HOMOGENEOUS SOLID HAVING THE FORMULA LIMTN1-M,X WHERE T REPRESENTS AT LEAST ONE TRANSITION METAL FROM THE GROUP CONSISTING OF MANGANESE, IRON, NICKEL, COLBAT, COPPER AND ZINC, X REPRESENTS A CHALCOGENIDE FROM THE GROUP CONSISTING OF OXYGEN, SULFUR, SELENIUM AND TELLURIUM, AND M HAS A VALUE NOT EXCEEDING 0.1 AND NOT LESS THAN 0.001 AND ANOTHER MEMBER ELECTRICALLY CONNECTED TO ONE PORTION OF THE SAID ONE MEMBER, SAID ANOTHER MEMBER COMPOSED OF A HOMOGENEOUS SOLID HAVING THE FORMULA ALAT(1-N)X WHERE N IS FROM 0.1 TO 0.001.
References Cited (Backward Citations)
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US685471A
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US775188A
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US2232960A
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US2397756A
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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) | 1963-01-18 | 1963-07-20 | 1964-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-18 | 1967-07-20 | 1968-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-18 | 1971-07-20 | 1972-01-19 | $7700.00 | Window Closed / Lapsed |