Patent US3623221A successfully refreshed from Google Patents.
US3623221A
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Method of fabricating a tubular superconductor assembly
Assignee: Imperial Metal Industries Kynoch Ltd
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Filing: 1969-05-21
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Granted: 1971-11-30
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Expires: 1989-05-21
Abstract
Abstract A METHOD OF FABRICATING AN ASSEMBLY OF TWO OR MORE SUPERCONDUCTOR ELEMENTS EMBEDDED WITHIN THE WALL OF A METALLIC TUBE WHEREIN THE ELEMENTS ARE LOCATED IN ANNULAR FORMATION WITHIN A TUBE OF NON-SUPERCONDUCTOR MATERIAL, THE ASSEMBLY IS HEATED TO ENHANCE BONDING, AND THE ASSEMBLY IS EXTRUDED TO FORM AN INTEGRAL TUBE.
Inventors
- 👤 Peter Harlow Morton
- 👤 Anthony Clifford Barber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 03:13
CPC Classifications
B; B21; B21C; B21C23/00; B21C23/22; B21C33/00; B21C33/002; B21C33/004; B23; B23K; B23K31/00; B23K31/02; H; H01; H01B; H01B12/00; H01B12/02; H01B12/12; H01F; H01F6/00; H01F6/06; H10; H10N; H10N60/00; H10N60/01; H10N60/0156; H10N60/0184; H10N60/20; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S29/00; Y10S29/047; Y10S505/00; Y10S505/825; Y10S505/884; Y10S505/917; Y10S505/918; Y10S505/928; Y10S505/929; Y10S505/93; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |