Patent US3271658A successfully refreshed from Google Patents.
US3271658A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thin film superconducting transformer
Assignee: International Business Machines Corp
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Filing: 1962-05-25
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Granted: 1966-09-06
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Expires: 1982-05-25
Abstract
No abstract record available.
Inventors
- 👤 Cheng Tsung-Hsien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 05:11
CPC Classifications
H; H01; H01F; H01F36/00; G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; H01F17/00; H01F17/0006; Y; Y02; Y02E; Y02E40/00; Y02E40/60; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A COMPOSITE TRANSFORMER COMPRISING, A PRIMARY INPUT, A SECONDARY OUTPUT, A PLURALITY OF INDIVIDUAL TRANSFORMERS, EACH INDIVIDUAL TRANSFORMER HAVING A PRIMARY CONDUCTOR, AND A SECONDARY CONDUCTOR JUXTAPOSED TO SAID PRIMARY CONDUCTOR, SAID SECONDARY CONDUCTORS BEING DIVIDED INTO FIRST AND SECOND GROUPS, FIRST MEANS CONNECTING SAID FIRST GROUP OF SECONDARY CONDUCTORS IN PARALLEL WITH SAID SECONDARY OUTPUT, SECOND MEANS CONNECTING SAID SECOND GROUP OF SECONDARY CONDUCTORS IN PARALLEL, SAID SECOND MEANS BEING POSITIONED ABOVE SAID FIRST MEANS, CONNECTING MEANS CONNECTING SAID SECOND MEANS IN PARALLEL WITH SAID SECONDARY OUTPUT SO THAT CURRENT IN ADJACENT SECONDARY CONDUCTORS FLOW IN OPPOSITE DIRECTIONS, THIRD MEANS CONNECTING SAID PRIMARY CONDUCTORS IN SERIES WITH SAID PRIMARY INPUT, SAID MEANS BEING POSITIONED OVER SAID FIRST AND SAID SECOND MEANS, AND A SUPERCONDUCTIVE SHIELD BENEATH EACH CONDUCTOR WHERE THE ALGEBRAIC SUM OF THE SHORT CIRCUIT CURRENTS IN THE VARIOUS LAYERS OF CIRCUITRY IS NOT ZERO.
Claim 2
Dependent Claim
147 words
A COMPOSITE TRANSFORMER COMPRISING, A PRIMARY INPUT, A SECONDARY OUTPUT, A PLURALITY OF INDIVIDUAL TRANSFORMERS, EACH INDIVIDUAL TRANSFORMER HAVING A PRIMARY CONDUCTOR, AND A SECONDARY CONDUCTOR JUXTAPOSED TO SAID PRIMARY CONDUCTOR, SAID SECONDARY CONDUCTORS BEING DIVIDED INTO FIRST AND SECOND GROUPS, FIRST MEANS CONNECTING SAID FIRST GROUP OF SECONDARY CONDUCTORS IN PARALLEL WITH SAID SECONDARY OUTPUT, SECOND MEANS CONNECTING SAID SECOND GROUP OF SECONDARY CONDUCTORS IN PARALLEL, SAID SECOND MEANS BEING POSITIONED ABOVE SAID FIRST MEANS, CONNECTING MEANS CONNECTING SAID SECOND MEANS IN PARALLEL WITH SAID SECONDARY OUTPUT SO THAT CURRENT IN ADJACENT SECONDARY CONDUCTORS FLOW IN OPPOSITE DIRECTIONS, THIRD MEANS CONNECTING SAID PRIMARY CONDUCTORS IN SERIES WITH SAID PRIMARY INPUT, SAID MEANS BEING POSITIONED OVER SAID FIRST AND SAID SECOND MEANS, AND A SUPERCONDUCTIVE SHIELD BENEATH EACH CONDUCTOR WHERE THE ALGEBRAIC SUM OF THE SHORT CIRCUIT CURRENTS IN THE VARIOUS LAYERS OF CIRCUITRY IS NOT ZERO.
References Cited (Backward Citations)
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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) | 1969-09-05 | 1970-03-07 | 1970-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-05 | 1974-03-07 | 1974-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-05 | 1978-03-07 | 1978-09-06 | $7700.00 | Window Closed / Lapsed |