US3275843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film superconducting transformers and circuits
Assignee: Unisys Corp
•
Filing: 1962-08-02
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Granted: 1966-09-27
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Expires: 1982-08-02
Abstract
No abstract record available.
Inventors
- 👤 Albert J Meyerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:35
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
A THIN FILM SUPERCONDUCTING CIRCUIT COMPRISING: A PLURALITY OF SUPERCONDUCTING TRANSFORMERS EACH HAVING MEANS FOR INCREASING THE INDUCTANCE OF THE PRIMARY AND SECONDARY OF SAID TRANSFORMER INCLUDING A SHIELD OF SUPERCONDUCTING MATERIAL HAVING AT LEAST ONE OPENING THEREON, EACH SAID SUPERCONDUCTING TRANSFORMER HAVING ITS FLUX LINKED PRIMARY AND SECONDARY WINDINGS DEPOSITED IN AN ADJACENT PLANE WITHIN THE PROJECTED AREA OF SAID OPENING ON SAID SHIELD, SAID PRIMARIES OF SAID PLURALITY OF SAID TRANSFORMER BEING CONNECTED IN SERIES; SAID SECONDARIES OF SAID PLURALITY OF TRANSFORMERS BEING CONNECTED IN PARALLEL; A PLURALITY OF THIN FILM CRYOTRONS COUPLED TO THE SECONDARY OF EACH OF SUPERCONDUCTING TRANSFORMER; AND EACH OF SAID CRYOTRON ADAPTED TO BECOME RESISTIVE IN RESPONSE TO A CURRENT APPLIED THERETO.
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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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |