Patent US3485757A successfully refreshed from Google Patents.
US3485757A
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Thermoelectric composition comprising doped bismuth telluride,silicon and boron
Assignee: United States Atomic Energy Commission
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Filing: 1964-11-23
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Granted: 1969-12-23
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Expires: 1984-11-23
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Shapiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:07
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A THERMOELECTRIC COMPOSITION COMPRISING BISMUTH TELLURIDE PLUS DOPANT IN AN AMOUNT SUFFICENT TO IMPART TO SAID BISMUTH TELLURIDE A GIVEN CONDUCTIVITY TYPE CHARCTERISTIC, AND, IN ADDITION THERETO, A MEMBER FROM THE GROUP CONSISTING OF ELEMENTAL SILICON AND ELEMENTAL BORON AND COMBINATIONS THEREOF IN ATOMIC PROPORTIONS FROM 1/2% TO 3%, WHEREBY THE TEMPERATURE-RESISTIVITY CHARACTERISTICS ARE IMPROVED WITHOUT ALTERING SAID GIVTN CONDUCITIVTY CHARACTERISTIC.
Claim 2
Dependent Claim
61 words
A THERMOELECTRIC COMPOSITION COMPRISING BISMUTH TELLURIDE PLUS DOPANT IN AN AMOUNT SUFFICENT TO IMPART TO SAID BISMUTH TELLURIDE A GIVEN CONDUCTIVITY TYPE CHARCTERISTIC, AND, IN ADDITION THERETO, A MEMBER FROM THE GROUP CONSISTING OF ELEMENTAL SILICON AND ELEMENTAL BORON AND COMBINATIONS THEREOF IN ATOMIC PROPORTIONS FROM 1/2% TO 3%, WHEREBY THE TEMPERATURE-RESISTIVITY CHARACTERISTICS ARE IMPROVED WITHOUT ALTERING SAID GIVTN CONDUCITIVTY CHARACTERISTIC.
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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) | 1972-12-22 | 1973-06-23 | 1973-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-12-22 | 1977-06-23 | 1977-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-12-22 | 1981-06-23 | 1981-12-23 | $7700.00 | Window Closed / Lapsed |