US3102973A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting device
Assignee: AT&T Inc
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Filing: 1961-06-26
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Granted: 1963-09-03
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Expires: 1981-06-26
Abstract
No abstract record available.
Inventors
- 👤 John E Kunzler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:58
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/06; H10; H10N; H10N60/00; H10N60/80; H10N60/85; Y; Y10; Y10S; Y10S336/00; Y10S336/01; Y10S505/00; Y10S505/825; Y10S505/879
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A SUPERCONDUCTING DEVICE COMPRISING A SUPERCONDUCTING BISMUTH-LEAD MEMBER, MEANS FOR ENERGIZING SAID MEMBER TO INDUCE A CURRENT HAVING A MINIMUM CURRENT DENSITY OF 1400 AMPS/CM.2 IN SAID MEMBER AND COOLING MEANS FOR MAINTAINING SAID MEMBER AT A TEMPERATURE BELOW ITS TRANSITION TEMPERATURE, SAID MEMBER HAVING THE FOLLOWING COMPOSITION ON A PERCENT BY WEIGHT BASIS: BI43-54PB46-57.
Claim 2
Dependent Claim
55 words
A SUPERCONDUCTING DEVICE COMPRISING A SUPERCONDUCTING BISMUTH-LEAD MEMBER, MEANS FOR ENERGIZING SAID MEMBER TO INDUCE A CURRENT HAVING A MINIMUM CURRENT DENSITY OF 1400 AMPS/CM.2 IN SAID MEMBER AND COOLING MEANS FOR MAINTAINING SAID MEMBER AT A TEMPERATURE BELOW ITS TRANSITION TEMPERATURE, SAID MEMBER HAVING THE FOLLOWING COMPOSITION ON A PERCENT BY WEIGHT BASIS: BI43-54PB46-57.
References Cited (Backward Citations)
US2866842A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |