US3149240A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryotron clip and clamp circuit
Assignee: International Business Machines Corp
•
Filing: 1961-05-01
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Granted: 1964-09-15
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Expires: 1981-05-01
Abstract
No abstract record available.
Inventors
- 👤 James P Beesley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:18
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H; H10; H10N; H10N60/00; H10N60/30; H10N60/35; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
60 words
A BISTABLE CIRCUIT COMPRISING TWO GATING ELEMENTS HAVING SUPERCONDUCTIVITY TRANSITION CONDITIONS, A DRIVE LINE ASSOCIATED WITH EACH GATING ELEMENT, MEANS FOR APPLYING A CURRENT TO ONE OF SAID DRIVE LINES CONSIDERABLY MORE THAN SUFFICIENT TO DESTROY THE SUPERCONDUCTIVITY OF ITS ASSOCIATED GATING ELEMENT, AND MEANS FOR FEEDING BACK GATE CURRENT OF THE OTHER OF SAID GATING ELEMENTS AS AN OPPOSI-
References Cited (Backward Citations)
US2832897A
Cited
US3020489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-15 | 1968-03-16 | 1968-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-15 | 1972-03-16 | 1972-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-15 | 1976-03-16 | 1976-09-15 | $7700.00 | Window Closed / Lapsed |