US3508968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric device
Assignee: Energy Conversion Devices Inc
•
Filing: 1962-05-28
•
Granted: 1970-04-28
•
Expires: 1982-05-28
Abstract
No abstract record available.
Inventors
- 👤 Stanford R Ovshinsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:57
CPC Classifications
H; H01; H01G; H01G9/00; H01G9/21; H10; H10N; H10N10/00; H10N10/10; H10N10/17; H10N10/80; H10N10/85; H10N10/851
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
123 words
A THERMOELECTRIC DEVICE FOR PRODUCING A D.C. ELECTRICAL POTENTIAL IN ACCORDANCE WITH DIFFERENTIAL TEMPERATURE CONDITIONS CONSISTING ESSENTIALLY OF SPACED APART FIRST AND SECOND METALLIC ELECTRODES OF SUBSTANTIALLY THE SAME METAL, AND A COMPOSITION INCLUDING AS AN ESSENTIAL ACTIVE INGREDIENT AT LEAST ONE LITHIUM COMPOUND INTERPOSED BETWEEN AND IN CONTACT WITH SAID FIRST AND SECOND METALLIC ELECTRODES, MEANS FOR PRODUCING RESPECTIVELY DIFFERENT TEMPERATURES AT SAID FIRST AND SECOND METALLIC ELCTRODES, SAID AT LEAST ONE LITHIUM COMPOUND BEING ASYMMETRICALLY HEATED THEREBY AND PRODUCING A SUBSTANTIAL D.C. POTENTIAL BETWEEN SAID FIRST AND SECOND METALLIC ELCTRODESS IN ACCORDANCE WITH THE TEMPERATURE DIFFERENTIAL THERBETWEEN, SAID DEVICE BEING SO CONSTRUCTED THAT THE SAID COMPOSITION IS NOT EXPOSED TO AIR OR AN ACTIVE GAS DURING PRODUCTION OF SAID D.C. POTENTIAL.
Claim 2
Dependent Claim
123 words
A THERMOELECTRIC DEVICE FOR PRODUCING A D.C. ELECTRICAL POTENTIAL IN ACCORDANCE WITH DIFFERENTIAL TEMPERATURE CONDITIONS CONSISTING ESSENTIALLY OF SPACED APART FIRST AND SECOND METALLIC ELECTRODES OF SUBSTANTIALLY THE SAME METAL, AND A COMPOSITION INCLUDING AS AN ESSENTIAL ACTIVE INGREDIENT AT LEAST ONE LITHIUM COMPOUND INTERPOSED BETWEEN AND IN CONTACT WITH SAID FIRST AND SECOND METALLIC ELECTRODES, MEANS FOR PRODUCING RESPECTIVELY DIFFERENT TEMPERATURES AT SAID FIRST AND SECOND METALLIC ELCTRODES, SAID AT LEAST ONE LITHIUM COMPOUND BEING ASYMMETRICALLY HEATED THEREBY AND PRODUCING A SUBSTANTIAL D.C. POTENTIAL BETWEEN SAID FIRST AND SECOND METALLIC ELCTRODESS IN ACCORDANCE WITH THE TEMPERATURE DIFFERENTIAL THERBETWEEN, SAID DEVICE BEING SO CONSTRUCTED THAT THE SAID COMPOSITION IS NOT EXPOSED TO AIR OR AN ACTIVE GAS DURING PRODUCTION OF SAID D.C. POTENTIAL.
References Cited (Backward Citations)
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Cited
US2827401A
Cited
US2921973A
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US2953617A
Cited
US3025224A
Cited
US3031518A
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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) | 1973-04-27 | 1973-10-27 | 1974-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-04-27 | 1977-10-27 | 1978-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-04-27 | 1981-10-27 | 1982-04-28 | $7700.00 | Window Closed / Lapsed |