Patent US2995613A successfully refreshed from Google Patents.
US2995613A
Expired / Lapsed
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Semiconductive materials exhibiting thermoelectric properties
Assignee: AT&T Inc
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Filing: 1959-07-13
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Granted: 1961-08-08
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Expires: 1979-07-13
Abstract
No abstract record available.
Inventors
- 👤 Jack H Wernick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:23
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852; H10P; H10P95/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A HOMOGENEOUS SEMICONDUCTIVE COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ABOUT 5 MOL PERCENT TO ABOUT 90 MOL PERCENT OF ONE BINARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF LEAD TELLURIDE AND LEAD SELENIDE, REMAINDER AT LEAST ONE TERNARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILVER ANTIMONY TELLURIDE, SILVER ANTIMONY SELENIDE AND SILVER BISMUTH SELENIDE.
Claim 2
Dependent Claim
55 words
A HOMOGENEOUS SEMICONDUCTIVE COMPOSITION CONSISTING ESSENTIALLY OF AT LEAST ABOUT 5 MOL PERCENT TO ABOUT 90 MOL PERCENT OF ONE BINARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF LEAD TELLURIDE AND LEAD SELENIDE, REMAINDER AT LEAST ONE TERNARY COMPOUND SELECTED FROM THE GROUP CONSISTING OF SILVER ANTIMONY TELLURIDE, SILVER ANTIMONY SELENIDE AND SILVER BISMUTH SELENIDE.
References Cited (Backward Citations)
US2811570A
Cited
US2882468A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-08-07 | 1965-02-06 | 1965-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-07 | 1969-02-06 | 1969-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-07 | 1973-02-06 | 1973-08-08 | $7700.00 | Window Closed / Lapsed |