US3275930A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconducting controlled inductance circuits
Assignee: Unisys Corp
•
Filing: 1963-02-13
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Granted: 1966-09-27
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Expires: 1983-02-13
Abstract
No abstract record available.
Inventors
- 👤 Carl R Cassidy
- 👤 Albert J Meyerhoff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:30
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/38; H10; H10N; H10N60/00; H10N60/01; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
A SUPERCONDUCTING CIRCUIT PROVIDING: MEANS FOR CONTROLLING THE INDUCTANCE OF A CONTINUOUSLY SUPERCONDUCTING CURRENT PATH INCLUDING; A CONTINUOUSLY SUPERCONDUCTING PRIMARY WINDING, A CONTINUOUSLY SUPERCONDUCTING SECONDARY WINDING, AT LEAST A PORTION OF SAID PRIMARY WINDING LOCATED ADJACENT AT LEAST A PORTION OF SAID SECONDARY WINDING, A SHIELD OF SUPERCONDUCTING MATERIAL LOCATED BETWEEN THE ADJACENT PORTIONS OF SAID PRIMARY AND SECONDARY WINDINGS, AND MEANS FOR CAUSING SAID SUPERCONDUCTING SHIELD TO BECOME RESISTIVE THEREBY ENABLING THE ADJACENT PORTIONS OF SAID PRIMARY AND SECONDARY WINDING TO BE FLUX LINKED.
Claim 2
Dependent Claim
85 words
A SUPERCONDUCTING CIRCUIT PROVIDING: MEANS FOR CONTROLLING THE INDUCTANCE OF A CONTINUOUSLY SUPERCONDUCTING CURRENT PATH INCLUDING; A CONTINUOUSLY SUPERCONDUCTING PRIMARY WINDING, A CONTINUOUSLY SUPERCONDUCTING SECONDARY WINDING, AT LEAST A PORTION OF SAID PRIMARY WINDING LOCATED ADJACENT AT LEAST A PORTION OF SAID SECONDARY WINDING, A SHIELD OF SUPERCONDUCTING MATERIAL LOCATED BETWEEN THE ADJACENT PORTIONS OF SAID PRIMARY AND SECONDARY WINDINGS, AND MEANS FOR CAUSING SAID SUPERCONDUCTING SHIELD TO BECOME RESISTIVE THEREBY ENABLING THE ADJACENT PORTIONS OF SAID PRIMARY AND SECONDARY WINDING TO BE FLUX LINKED.
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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 |