US2811571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric generators
Assignee: Baso Inc
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Filing: 1954-12-15
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Granted: 1957-10-29
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Expires: 1974-12-15
Abstract
No abstract record available.
Inventors
- 👤 Robert W Fritts
- 👤 Karrer Sebastian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 09:41
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; C; C22; C22C; C22C11/00; F; F25; F25B; F25B21/00; F25B21/02
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
66 words
A THERMOELECTIC GENERATOR ELEMENT CONSISTING ESSENTIALLY OF AN ALLOY OF LEAD AND A TELLURIM-SELENIUM CONSTITUENT IN RELATIVE PROPORTIONS WITH RESPECT TO EACH OTHER IN THE AREA DEFINED BY SOLID LINES AB, BD, DF AND CA IN THE ACCOMPANYING DIGRAM OF FIGURE 1, AND A THIRD ELEMENT-PROMOTER IN AMOUNT NOT IN EXCESS OF FROM 1.2% TO 2.5% BY WEIGHT EFFECTIVE TO MODIFY THE CONDUCTIVITY OF THE ALLOY.
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) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |