Patent US2811570A successfully refreshed from Google Patents.
US2811570A
Expired / Lapsed
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Thermoelectric elements and method of making such elements
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
- 👤 Karrer Sebastian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:46
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
103 words
THE METHOD OF CONTROLLING THE ELECTRICAL CHARACTERISTICS OF A SEMI-METALLIC COMPOSITION CONSISTING ESSENTIALLY OF LEAD AND AT LEAST ONE MEMBER OF THE GROUP TELURIUM, SELENIUM AND SULPHUR IN RELATIVE PROPORTIONS WITH RESPECT TO EACH OTHER IN THE AREA DEFINED BY SOLID LINES AB, BDF, FE, AND ECA, IN THE ACCOMPANYING BIAXIAL DIAGRAM OF FIGURE 7, WHICH COMPRISES ANNEALING SAID COMPOSITION AT A TEMPERATURE OF FROM ABOUT 540* C. TO 815*C., BRINGING SAID COMPOSITON TO EQUILIBRIUM AT A TEMPERATURE IN THE RANGE FROM ABOUT 204* C. TO SAID ANNEALING TEMPERATURE AND THEN QUENCHING THE COMPOSITION AT A TEMPERATURE SELECTED WITHIN THE AFOREMENTIONED EQUILIBRIUM RANGE.
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 |