US3215569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for increasing the critical current of superconducting alloys
Assignee: Individual
•
Filing: 1962-02-09
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Granted: 1965-11-02
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Expires: 1982-02-09
Abstract
No abstract record available.
Inventors
- 👤 Jr George D Kneip
- 👤 Jr Jesse O Betterton
- 👤 Dewey S Easton
- 👤 James O Scarbrough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:25
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0156; C; C22; C22C; C22C27/00; C22C27/02; C22F; C22F1/00; C22F1/16; C22F1/18; H01; H01F; H01F6/00; H01F6/06; Y; Y10; Y10S; Y10S420/00; Y10S420/901; Y10S505/00; Y10S505/80; Y10S505/801; Y10S505/805; Y10S505/806; Y10S505/812; Y10S505/814; Y10S505/815; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A METHOD OF INCREASING THE CRITICAL CURRENT OF A HARD SUPERCONDUCTING ALLOY WHICH COMPRISES ANNEALING SAID ALLOY WITHIN A MULTIPHASE REGION OF ITS EQUILIBRIUM PHASE DIAGRAM BELOW A SUBSTANTIALLY HOMOGENEOUS SOLID PHASE FOR A PERIOD OF TIME SUFFICIENT TO INDUCE PRECIPITATION OF A SECONDARY PHASE, QUENCHING SAID ANNEALED ALLOY TO RETAIN SAID SECONDARY PHASE, AND SUBJECTING SAID ALLOY TO A MAGNETIC FIELD BELOW ITS CRITICAL MAGNETIC FIELD AT OR BELOW ITS CRITICAL TEMPERATURE.
Claim 2
Independent Claim
73 words
A METHOD OF INCREASING THE CRITICAL CURRENT OF A HARD SUPERCONDUCTING ALLOY WHICH COMPRISES ANNEALING SAID ALLOY WITHIN A MULTIPHASE REGION OF ITS EQUILIBRIUM PHASE DIAGRAM BELOW A SUBSTANTIALLY HOMOGENEOUS SOLID PHASE FOR A PERIOD OF TIME SUFFICIENT TO INDUCE PRECIPITATION OF A SECONDARY PHASE, QUENCHING SAID ANNEALED ALLOY TO RETAIN SAID SECONDARY PHASE, AND SUBJECTING SAID ALLOY TO A MAGNETIC FIELD BELOW ITS CRITICAL MAGNETIC FIELD AT OR BELOW ITS CRITICAL TEMPERATURE.
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) | 1968-11-01 | 1969-05-03 | 1969-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-01 | 1973-05-03 | 1973-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-01 | 1977-05-03 | 1977-11-02 | $7700.00 | Window Closed / Lapsed |