US3740273A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Miniaturized electric source having a radioactive heat source
Assignee: Biviator AG
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Filing: 1970-01-19
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Granted: 1973-06-19
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Expires: 1990-01-19
Abstract
Abstract A MINIATURIZED ELECTRIC SOURCE HAVING A RADIOACTIVE HEAT SOURCE AND THERMOELEMENTS ENCLOSED BY INSULATING LAYERS, SAID THERMOELEMENTS BEING CONSTITUTED BY THIN METALLIC LAYERS ON TAPE CARRIERS ON INSULATING MATERIAL, SUCH CARRIERS BEING WOUND OR FOLDED TO FORM A COMPACT UNIT COMPRISING A HIGH NUMBER OF THERMOELEMENTS.
Inventors
- 👤 K Adler
- 👤 G Ducommun
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 07:40
CPC Classifications
G; G21; G21H; G21H1/00; G21H1/10; G21H1/103; H; H10; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-06-18 | 1976-12-18 | 1977-06-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-06-18 | 1980-12-18 | 1981-06-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-06-18 | 1984-12-18 | 1985-06-19 | $7700.00 | Window Closed / Lapsed |