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US3497844A
Expired / Lapsed
US
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Superconductors
Assignee: United Kingdom Atomic Energy Authority
•
Filing: 1966-08-03
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Granted: 1970-02-24
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Expires: 1986-08-03
Abstract
No abstract record available.
Inventors
- 👤 Robert Carruthers
- 👤 Donald Nelson Cornish
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:07
CPC Classifications
H; H01; H01F; H01F6/00; H01F6/006; H01F6/008; H01F6/02; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/88; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 0
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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) | 1973-02-23 | 1973-08-25 | 1974-02-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-23 | 1977-08-25 | 1978-02-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-23 | 1981-08-25 | 1982-02-24 | $7700.00 | Window Closed / Lapsed |