US3465429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductors
Assignee: Imperial Metal Industries Kynoch Ltd
•
Filing: 1967-01-25
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Granted: 1969-09-09
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Expires: 1987-01-25
Abstract
No abstract record available.
Inventors
- 👤 Anthony Clifford Barber
- 👤 Francis John Vernon Farmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/01; H10N60/0156; B; B22; B22F; B22F7/00; B23; B23K; B23K20/00; B23K20/001; C; C22; C22C; C22C1/00; C22C14/00; C22C27/00; C22C27/02; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/93; Y10S505/00; Y10S505/825; Y10S505/917; Y10S505/918; Y10S505/919; Y10S505/928; Y10S505/929; Y10S505/93; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014; Y10T29/4981; Y10T428/00; Y10T428/12; Y10T428/12493; Y10T428/12771; Y10T428/12806; Y10T428/12819; Y10T428/12861; Y10T428/12903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3109963A
Cited
US3218693A
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US3243871A
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US3262187A
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US3371407A
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US3370347A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |