US3233199A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryotron gate structure
Assignee: AT&T Inc
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Filing: 1962-10-01
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Granted: 1966-02-01
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Expires: 1982-10-01
Abstract
No abstract record available.
Inventors
- 👤 Fred B Hagedorn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:10
CPC Classifications
H; H10; H10N; H10N60/00; H10N60/30; H10N60/35; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/86; Y10S505/862
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
134 words
A THIN FILM CRYOTRON CONSISTING OF A CONTROL ELEMENT AND A GATE, SAID GATE COMPRISING, IN COMBINATION, FIRST, SECOND AND THIRD STRIPS OF SUPERCONDUCTING MATERIAL DISPOSED IN LONGITUDINAL SUCCESSION, A FIRST END OF EACH OF SAID FIRST AND THIRD STRIPS ABUTTING AGAINST AND CONDUCTIVELY CONNECTED TO THE RESPECTIVE ENDS OF SAID SECOND STRIP, A PORTION OF SAID THIRD STRIP IN THE VICINITY OF THE SECOND END THEREOF BEING DOUBLED BACK, SO THAT ONE BROAD SURFACE THEREOF IS ADJACENT TO AND COEXTENSIVE WITH A BROAD SURFACE OF SAID SECOND STRIP, SAID DOUBLED-BACK REGION OF SAID THIRD STRIP HAVING A WIDTH THAT IS NARROWER THAN THAT OF SAID SECOND STRIP, AND THE MATERIAL OF SAID FIRST AND THIRD STRIPS HAVING A CRITICAL CURRENT DENSITY AND A CRITICAL MAGNETIC FIELD GREATER THAN THOSE OF SAID SECOND STRIP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-31 | 1969-08-02 | 1970-02-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-31 | 1973-08-02 | 1974-02-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-31 | 1977-08-02 | 1978-02-01 | $7700.00 | Window Closed / Lapsed |