US3224876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermoelectric alloy
Assignee: 3M Co
•
Filing: 1963-02-04
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Granted: 1965-12-21
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Expires: 1983-02-04
Abstract
No abstract record available.
Inventors
- 👤 Russell E Fredrick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:38
CPC Classifications
C; C22; C22C; C22C28/00; H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/852
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
52 words
AN ALLOY HAVING THERMOELECTRIC PROPERTIES CONSISTING ESSENTIALLY OF FROM 1 TO 25 MOL PERCENT GERMANIUM TELLURIDE, UP TO 50 MOL PERCENT TIN TELLURIDE, AND A BALANCE ESSENTIALLY OF LEAD TELLURIDE, THE TOTAL AMONT OF SAID LEAD, GERMANIUM AND TIN IN SAID ALLOY BEING WITHOUT ABOUT 5 ATOMIC PERCENT OF THE STOICHIOMETRIC REQUIREMENTS.
Claim 2
Dependent Claim
52 words
AN ALLOY HAVING THERMOELECTRIC PROPERTIES CONSISTING ESSENTIALLY OF FROM 1 TO 25 MOL PERCENT GERMANIUM TELLURIDE, UP TO 50 MOL PERCENT TIN TELLURIDE, AND A BALANCE ESSENTIALLY OF LEAD TELLURIDE, THE TOTAL AMONT OF SAID LEAD, GERMANIUM AND TIN IN SAID ALLOY BEING WITHOUT ABOUT 5 ATOMIC PERCENT OF THE STOICHIOMETRIC REQUIREMENTS.
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) | 1968-12-20 | 1969-06-21 | 1969-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-20 | 1973-06-21 | 1973-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-20 | 1977-06-21 | 1977-12-21 | $7700.00 | Window Closed / Lapsed |