US2866842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting compounds
Assignee: AT&T Inc
•
Filing: 1953-07-30
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Granted: 1958-12-30
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Expires: 1973-07-30
Abstract
No abstract record available.
Inventors
- 👤 Matthias Bernd Teo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:50
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/80; H10N60/85; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
IN COMBINATION, A SUPERCONDUCTOR CONSISTING OF A SOLID SOLUTION OF NBN AND NBC, INCLUDING AT LEAST 5 PERCENT OF EITHER OF SAID BINARY COMPOUNDS, AND MEANS FOR ARTIFICIALLY REFRIGERATING SAID SUPERCONDUCTOR.
Claim 2
Dependent Claim
31 words
IN COMBINATION, A SUPERCONDUCTOR CONSISTING OF A SOLID SOLUTION OF NBN AND NBC, INCLUDING AT LEAST 5 PERCENT OF EITHER OF SAID BINARY COMPOUNDS, AND MEANS FOR ARTIFICIALLY REFRIGERATING SAID SUPERCONDUCTOR.
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) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |