US3578496A
Expired / Lapsed
US
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Method of improving the superconductivity of niobium-tin layers precipitated on a carrier
Assignee: Siemens AG
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Filing: 1968-03-28
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Granted: 1971-05-11
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Expires: 1988-03-28
Abstract
Abstract DESCRIBED IS A METHOD OF IMPROVING THE SUPERCONDUCTIVE PROPERTIES OF LAYERS OF THE INTERMETALLIC COMPOUND NIOBIUM-TIN (NB3SN) WHICH ARE PRECIPITATED ON A HEATED CARRIER BY HYDROGEN REDUCTION OF HALIDES OF THE ELEMENTS NIOBIUM AND TIN. THE METHOD IS CHARACTERIZED IN THAT THE COATED CARRIER IS SUBJECTED TO A HEAT PROCESSING, UNDER PROTECTIVE GAS, WHICH LOWERS THE HYDROGEN CONTENT OF THE NIOBIUM-TIN LAYER.
Inventors
- 👤 Gunther Ziegler
- 👤 Barbara Wirth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:14
CPC Classifications
C; C23; C23C; C23C16/00; C23C16/44; C23C16/54; C23C16/545; C23C16/56; H; H10; H10N; H10N60/00; H10N60/01; Y; Y10; Y10S; Y10S505/00; Y10S505/80; Y10S505/815; Y10S505/818; Y10S505/819; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
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References Cited (Backward Citations)
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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) | 1974-05-10 | 1974-11-09 | 1975-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-05-10 | 1978-11-09 | 1979-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-05-10 | 1982-11-09 | 1983-05-11 | $7700.00 | Window Closed / Lapsed |