US3273347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric heat pump assembly
Assignee: Individual
•
Filing: 1965-06-14
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Granted: 1966-09-20
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Expires: 1985-06-14
Abstract
No abstract record available.
Inventors
- 👤 Thore M Elfving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:17
CPC Classifications
F; F25; F25B; F25B21/00; F25B21/02; H; H10; H10N; H10N10/00; H10N10/10; H10N10/13; H10N10/17; H10N10/80; H10N10/81; H10N10/813
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A THERMOELECTRIC ASSEMBLY, PAIRS OF SEMISCONDUCTIVE BODIES OF DISSIMILAR TYPE WITH SIMILAR ENDS CONTACTING HOT AND COLD JUNCTION BRIDGES TO FORM A LINEAR ARRAY OF THERMOCOUPLES IN SERIES, AT LEAST ONE OF SAID JUNCTION BRIDGES BEING FORMED FROM A TUBING SECTION, METAL DISC ELEMENTS IN CONTACT WITH THE ENDS OF SAID TUBING SECTION AND JOINED TO SAID SEMICONDUCTIVE BODIES, AND FIN MEANS
Claim 2
Dependent Claim
63 words
IN A THERMOELECTRIC ASSEMBLY, PAIRS OF SEMISCONDUCTIVE BODIES OF DISSIMILAR TYPE WITH SIMILAR ENDS CONTACTING HOT AND COLD JUNCTION BRIDGES TO FORM A LINEAR ARRAY OF THERMOCOUPLES IN SERIES, AT LEAST ONE OF SAID JUNCTION BRIDGES BEING FORMED FROM A TUBING SECTION, METAL DISC ELEMENTS IN CONTACT WITH THE ENDS OF SAID TUBING SECTION AND JOINED TO SAID SEMICONDUCTIVE BODIES, AND FIN MEANS
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |