Patent US3271592A successfully refreshed from Google Patents.
US3271592A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic electronic memory unit
Assignee: General Electric Co
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Filing: 1963-08-19
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Granted: 1966-09-06
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Expires: 1983-08-19
Abstract
No abstract record available.
Inventors
- 👤 John W Bremer
- 👤 Vernon L Newhouse
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:44
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/44; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/831
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A MEMORY DEVICE COMPRISING A LOOP CIRCUIT CAPABLE OF SUPERCONDUCTION, A SECOND CIRCUIT COUPLED TO SAID LOOP CIRCUIT FOR PRODUCING A PERSISTENT CURRENT IN SAID LOOP CIRCUIT IN ONE DIRECTION FOR ONE TYPE INFORMATION AND IN THE OPPOSITE DIRECTION FOR A SECOND TYPE OF INFORMATION, A CONDUCTOR WHICH IS NORMALLY SUPERCONDUCTING CROSSINGS SAID LOOP CIRCUIT, AND MEANS FOR PROVIDING A SECOND CURRENT THROUGH SAID SECOND CIRCUIT WHICH INCREASES THE MAGNITUDE OF THE PERSISTENT CURRENT WHEN THE PERSISTENT CURRENT IS IN ONE DIRECTION AND DECREASES THE MAGNITUDE OF THE PERSISTENT CURRENT WHEN THE PERSISTENT CURRENT IS IN THE OPPOSITE DIRECTION TO RENDER SAID CONDUCTOR NON-SUPERCONDUCTING FOR SAID ONE DIRECTION OF SAID PERSISTENT CURRENT SO THAT THE MAGNITUDE OF THE RESISTANCE OF SAID CONDUCTOR INDICATES THE TYPE OF INFORMATION STORED IN SAID LOOP CIRCUIT.
Claim 2
Dependent Claim
132 words
A MEMORY DEVICE COMPRISING A LOOP CIRCUIT CAPABLE OF SUPERCONDUCTION, A SECOND CIRCUIT COUPLED TO SAID LOOP CIRCUIT FOR PRODUCING A PERSISTENT CURRENT IN SAID LOOP CIRCUIT IN ONE DIRECTION FOR ONE TYPE INFORMATION AND IN THE OPPOSITE DIRECTION FOR A SECOND TYPE OF INFORMATION, A CONDUCTOR WHICH IS NORMALLY SUPERCONDUCTING CROSSINGS SAID LOOP CIRCUIT, AND MEANS FOR PROVIDING A SECOND CURRENT THROUGH SAID SECOND CIRCUIT WHICH INCREASES THE MAGNITUDE OF THE PERSISTENT CURRENT WHEN THE PERSISTENT CURRENT IS IN ONE DIRECTION AND DECREASES THE MAGNITUDE OF THE PERSISTENT CURRENT WHEN THE PERSISTENT CURRENT IS IN THE OPPOSITE DIRECTION TO RENDER SAID CONDUCTOR NON-SUPERCONDUCTING FOR SAID ONE DIRECTION OF SAID PERSISTENT CURRENT SO THAT THE MAGNITUDE OF THE RESISTANCE OF SAID CONDUCTOR INDICATES THE TYPE OF INFORMATION STORED IN SAID LOOP CIRCUIT.
References Cited (Backward Citations)
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 |