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US3403133A
Expired / Lapsed
US
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Thermoelectric compositions of tellurium, manganese, and lead and/or tin
Assignee: 3M Co
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Filing: 1966-07-05
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Granted: 1968-09-24
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Expires: 1986-07-05
Abstract
No abstract record available.
Inventors
- 👤 Russell E Fredrick
- 👤 James D Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:34
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/85; H10N10/851; H10N10/854; C; C22; C22C; C22C11/00; C22C13/00; Y; Y10; Y10S; Y10S148/00; Y10S148/063; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 0
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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) | 1971-09-24 | 1972-03-25 | 1972-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-24 | 1976-03-25 | 1976-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-24 | 1980-03-25 | 1980-09-24 | $7700.00 | Window Closed / Lapsed |