US2914735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductor modulator circuitry
Assignee: International Business Machines Corp
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Filing: 1957-09-30
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Granted: 1959-11-24
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Expires: 1977-09-30
Abstract
No abstract record available.
Inventors
- 👤 Donald R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:16
CPC Classifications
H; H03; H03B; H03B15/00; H03B15/003; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H03C; H03C1/00; H03C7/00; H03C7/02; H03D; H03D7/00; H03D7/005; H03K; H03K17/00; H03K17/51; H03K17/92; H10; H10N; H10N60/00; Y; Y10; Y10S; Y10S336/00; Y10S336/01; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86; Y10S505/863; Y10S505/872; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49014
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |