US3437459A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composite superconductor having a core of superconductivity metal with a nonsuperconductive coat
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1967-03-27
•
Granted: 1969-04-08
•
Expires: 1987-03-27
Abstract
No abstract record available.
Inventors
- 👤 John Eric Charles Wat Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:14
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/04; H; H10; H10N; H10N60/00; H10N60/01; H10N60/0156; H10N60/0184; H10N60/20; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/923; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/80; Y10S505/812; Y10S505/813; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T428/00; Y10T428/12; Y10T428/12431; Y10T428/12493; Y10T428/12701; Y10T428/12771; Y10T428/12806; Y10T428/12819; Y10T428/12826; Y10T428/12833; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938; Y10T428/294; Y10T428/2942; Y10T428/2944; Y10T428/298
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |