US3694274A
Expired / Lapsed
US
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High-transition-temperature superconductors in the nb-al-ge system
Assignee: United States Atomic Energy Commission
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Filing: 1971-04-26
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Granted: 1972-09-26
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Expires: 1991-04-26
Abstract
Abstract SUPERCONDUCTING MATERIALS OF THE NOMINAL COMPOSITION NBXALYGE(1-Y), WHERE X IS IN THE RANGE OF 1.9 TO 2.8 AND Y IS IN THE RANGE OF 0.5 TO 0.9, HAVING TRANSITION TEMPERATURES IN THE 19*-20*K. RANGE ARE READILY PRODUCED BY ANNEALING ARE-MELTED COMPOSITIONS, OR COLD-PRESSED, HEATTREATED COMPOSITIONS AT MODERATE TEMPERATURES FOR REASONABLY LONG TIMES ($50 HOURS).
Inventors
- 👤 Angelo L Giorgi
- 👤 Eugene G Szklarz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:33
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; C; C22; C22C; C22C27/00; C22C27/02; Y; Y10; Y10S; Y10S420/00; Y10S420/901; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/805; Y10S505/812; Y10S505/814
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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |