Patent US3287923A successfully refreshed from Google Patents.
US3287923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric assembly
Assignee: Individual
•
Filing: 1965-03-22
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Granted: 1966-11-29
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Expires: 1985-03-22
Abstract
No abstract record available.
Inventors
- 👤 Thore M Elfving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:46
CPC Classifications
F; F24; F24F; F24F5/00; F24F5/0042; F25; F25B; F25B21/00; F25B21/02; H; H10; H10N; H10N10/00; H10N10/10; H10N10/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A THERMOELECTRIC ASSEMBLY OF THE TYPE INCLUDING PAIRS OF SEMICONDUCTOR ELEMENTS OF N-TYPE AND P-TYPE THERMOELECTRIC MATERIAL HAVING FIRST AND SECOND SPACED SURFACES, FIRST JUNCTION BRIDGES CONNECTED BETWEEN THE FIRST SURFACES OF EACH OF SAID PAIRS OF ELEMENTS, SECOND JUNCTION BRIDGES CONNECTED BETWEEN THE SECOND SURFACE OF SAID SEMICONDUCTOR ELEMENTS TO FORM THERMOCOUPLES, AT LEAST ONE OF SAID FIRST OR SECOND JUNCTION BRIDGES BEING IN THE FORM OF SHORT LENGTHS OF HOLLOW FINNED TUBES HAVING OUTWARDLY EXTENDING HEAT TRANSFER FINS.
Claim 2
Dependent Claim
80 words
A THERMOELECTRIC ASSEMBLY OF THE TYPE INCLUDING PAIRS OF SEMICONDUCTOR ELEMENTS OF N-TYPE AND P-TYPE THERMOELECTRIC MATERIAL HAVING FIRST AND SECOND SPACED SURFACES, FIRST JUNCTION BRIDGES CONNECTED BETWEEN THE FIRST SURFACES OF EACH OF SAID PAIRS OF ELEMENTS, SECOND JUNCTION BRIDGES CONNECTED BETWEEN THE SECOND SURFACE OF SAID SEMICONDUCTOR ELEMENTS TO FORM THERMOCOUPLES, AT LEAST ONE OF SAID FIRST OR SECOND JUNCTION BRIDGES BEING IN THE FORM OF SHORT LENGTHS OF HOLLOW FINNED TUBES HAVING OUTWARDLY EXTENDING HEAT TRANSFER FINS.
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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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |