US3370347A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making superconductor wires
Assignee: International Business Machines Corp
•
Filing: 1966-05-26
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Granted: 1968-02-27
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Expires: 1986-05-26
Abstract
No abstract record available.
Inventors
- 👤 Richard L Garwin
- 👤 Arthur S Nowick
- 👤 Donald P Seraphim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0128; B; B21; B21C; B21C37/00; B21C37/04; B21C37/047; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/928; Y10S505/93; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/49801
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
200 words
A METHOD OF MAKING A SUPERCONDUCTOR WIRE HAVING A GIVEN CRITICAL MAGNETIC FIELD COMPRISING THE STEPS OF: (A) PLACING A SUPERCONDUCTOR AND NON-FERROMAGNETIC METAL WHICH IS SUPERCONDUCTIVE AND NON-FERROMAGNETIC AT A GIVEN CRITICAL TEMPERATURE IN INTIMATE CON TACT WITH A MATERIAL WHICH REMAINS IN ITS NORMAL STATE AT SAID GIVEN TEMPERATURE, SAID MATERIAL BEING TAKEN FROM THE GROUP CONSISTING OF ALUMINUM-ZINC AND SILVER CHLORIDE, SAID SUPERCONDUCTOR METAL AND SAID MATERIAL BEING SUCH THAT THE DEPTH OF FREE INTERCHANGE OF ELECTRONS BETWEEN SAID SUPERCONDUCTOR METAL AND SAID MATERIAL IS SHORTER THAN THE MAGNETIC FIELD PENETRATION DEPTH IN SAID SUPERCONDUCTOR METAL, SAID SUPERCONDUCTOR METAL HAVING AN INITIAL CRITICAL MAGNETIC FIELD WHICH IS SMALLER THAN THE GIVEN CRITICAL MAGNETIC FIELD OF SAID SUPERCONDUCTOR, (B) STRETCHING SAID METAL AND SAID MATERIAL SO AS TO SHAPE SAID METAL AND MATERIAL INTO AN ELONGATED FORM, (C) DIVIDING THE ELONGATED METAL AND MATERIAL INTO A PLURALITY OF SEGMENTS, (D) ASSEMBLING SAID SEGMENTS INTO A BUNDLE, (E) STRETCHING SAID BUNDLE SO AS TO SHAPE SAID BUNDLE INTO AN ELONGATED FORM AND (F) CONTINUING TO STRETCH SAID SUPERCONDUCTOR METAL UNTIL A CROSS-SECTIONAL DIMENSION THEREOF IS REDUCED TO AT LEAST APPROXIMATELY THE MAGNETIC FIELD PENETRATION DEPTH OF SAID SUPERCONDUCTOR METAL.
Claim 2
Independent Claim
200 words
A METHOD OF MAKING A SUPERCONDUCTOR WIRE HAVING A GIVEN CRITICAL MAGNETIC FIELD COMPRISING THE STEPS OF: (A) PLACING A SUPERCONDUCTOR AND NON-FERROMAGNETIC METAL WHICH IS SUPERCONDUCTIVE AND NON-FERROMAGNETIC AT A GIVEN CRITICAL TEMPERATURE IN INTIMATE CON TACT WITH A MATERIAL WHICH REMAINS IN ITS NORMAL STATE AT SAID GIVEN TEMPERATURE, SAID MATERIAL BEING TAKEN FROM THE GROUP CONSISTING OF ALUMINUM-ZINC AND SILVER CHLORIDE, SAID SUPERCONDUCTOR METAL AND SAID MATERIAL BEING SUCH THAT THE DEPTH OF FREE INTERCHANGE OF ELECTRONS BETWEEN SAID SUPERCONDUCTOR METAL AND SAID MATERIAL IS SHORTER THAN THE MAGNETIC FIELD PENETRATION DEPTH IN SAID SUPERCONDUCTOR METAL, SAID SUPERCONDUCTOR METAL HAVING AN INITIAL CRITICAL MAGNETIC FIELD WHICH IS SMALLER THAN THE GIVEN CRITICAL MAGNETIC FIELD OF SAID SUPERCONDUCTOR, (B) STRETCHING SAID METAL AND SAID MATERIAL SO AS TO SHAPE SAID METAL AND MATERIAL INTO AN ELONGATED FORM, (C) DIVIDING THE ELONGATED METAL AND MATERIAL INTO A PLURALITY OF SEGMENTS, (D) ASSEMBLING SAID SEGMENTS INTO A BUNDLE, (E) STRETCHING SAID BUNDLE SO AS TO SHAPE SAID BUNDLE INTO AN ELONGATED FORM AND (F) CONTINUING TO STRETCH SAID SUPERCONDUCTOR METAL UNTIL A CROSS-SECTIONAL DIMENSION THEREOF IS REDUCED TO AT LEAST APPROXIMATELY THE MAGNETIC FIELD PENETRATION DEPTH OF SAID SUPERCONDUCTOR METAL.
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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) | 1971-02-26 | 1971-08-28 | 1972-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-26 | 1975-08-28 | 1976-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-26 | 1979-08-28 | 1980-02-27 | $7700.00 | Window Closed / Lapsed |