US3093749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superconductive bistable circuit
Assignee: Northrop Grumman Space and Mission Systems Corp
•
Filing: 1958-06-30
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Granted: 1963-06-11
•
Expires: 1978-06-30
Abstract
No abstract record available.
Inventors
- 👤 Dillingham Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:18
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/856; Y10S505/857; Y10S505/863
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
99 words
A BISTABLE CIRCUIT INCLUDING THE COMBINATION OF A SWITCHABLE ELEMENT WHICH IS CAPABLE OF ASSUMING A SUPERCONDUCTIVE CONDITION IN ONE STABLE STATE AND AN ELECTRICALLY RESISTIVE CONDITION IN ANOTHER STABLE STATE, A CONTROL COIL CONNECTED DIRECTLY ACROSS THE SWITCHABLE ELEMENT, SAID CONTROL COIL BEING MAGNETICALLY COUPLED TO SAID SWITCHABLE ELEMENT, MEANS PASSING A CURRENT THROUGH THE CONTROL COIL TO SUSTAIN THE SWITCHABLE ELEMENT IN AN ELECTRICALLY RESISTIVE CONDITION, AND MEANS FOR MOMENTARILY REDUCING THE CURRENT FLOW THROUGH THE CONTROL COIL TO SWITCH THE BISTABLE CIRCUIT TO A STABLE STATE IN WHICH THE SWITCHABLE ELEMENT IS IN A SUPERCONDUCTIVE CONDITION.
References Cited (Backward Citations)
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US2935694A
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Cited
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |