US3570118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing copper clad superconductors
Assignee: Westinghouse Electric Corp
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Filing: 1967-03-10
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Granted: 1971-03-16
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Expires: 1987-03-10
Abstract
Abstract COPPER CLADDIN GIS PROVIDED ON ALLOY OR COMPOUND SUPERCONDUCTORS SUCH AS NIOBIUM CONTAINING MATERIALS IN STRIP OR WIRE FORM BY BONDING THE SUPER CONDUCTIVE MATERIAL TO THE COPPER THROUGH AN INTERMEDIATE ALUMINUM BONDING LAYER. ALUMINUM FOIL IS PLACED ABOUT THE SUPERCONDUCTIVE MATERIAL AND THEN INSERTED INTO A COPPER SHEATH AND BONDING OCCURS IN THE ROLLING THEREOF OR DRAWING IT INTO THE WIRE. HEAT TREATMENT IS SUBSEQUENTLY EMPLOYED TO IMPROVE THE SUPERCONDUCTIVE PROPERTIES OF THE ALLOY OR TO REACT THE CONSTITUENTS TO FORM THE SUPERCONDUCTIVE COMPOUND.
Inventors
- 👤 William T Reynolds
- 👤 Russell M Schrecengost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:34
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0184; B; B21; B21C; B21C33/00; B21C33/002; H10N60/20; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/80; Y10S505/815; Y10S505/818; Y10S505/821; Y10S505/825; Y10S505/917; Y10S505/918; Y10S505/919; Y10S505/921; Y10S505/928; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T428/00; Y10T428/12; Y10T428/12333; Y10T428/12493; Y10T428/12736; Y10T428/12743; Y10T428/12771; Y10T428/12861; Y10T428/12903
Claims Analysis
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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) | 1974-03-15 | 1974-09-14 | 1975-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-15 | 1978-09-14 | 1979-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-15 | 1982-09-14 | 1983-03-16 | $7700.00 | Window Closed / Lapsed |