US3321746A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cryogenic associative memory
Assignee: General Electric Co
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Filing: 1962-09-27
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Granted: 1967-05-23
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Expires: 1982-09-27
Abstract
No abstract record available.
Inventors
- 👤 John W Bremer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:28
CPC Classifications
G; G11; G11C; G11C15/00; G11C15/06; Y; Y10; Y10S; Y10S505/00; Y10S505/825; Y10S505/831; Y10S505/833; Y10S505/834; Y10S505/835
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN AN ASSOCIATIVE MEMORY SYSTEM, A STORAGE CELL COMPRISING: A DIGIT LINE; FIRST, SECOND AND THIRD CRYOTRONS, THE GATE OF SAID FIRST CRYOTRON, THE CONTROL OF SAID SECOND CRYOTRON AND THE GATE OF SAID THIRD CRYOTON BEING CONNECTED IN SERIES WITH SAID DIGIT LINE; A FOURTH CRYOTRON, THE GATE THEREOF BEING CONNECTED IN PARALLEL WITH THE GATE OF SAID THIRD CRYOTRON; A BRANCH CIRCUIT CONNECTED IN PARALLEL WITH THE SERIES CONNECTED GATE OF SAID FIRST CRYOTRON AND CONTROL OF SAID SECOND CRYOTRON, SAID BRANCH CIRCUIT INCLUDING THE CONTROL OF SAID FOURTH CRYOTRON; A WRITE LINE INCLUDING THE CONTROL OF SAID FIRST CRYOTRON; AN ASSOCIATIVE LINE INCLUDING THE GATE OF SAID SECOND CRYOTRON; A READ LINE INCLUDING THE CONTROL OF SAID THIRD CRYOTRON; A SHUNT LINE; MEANS FOR SELECTIVELY CONNECTING SAID SHUNT LINE IN PARALLEL WITH SAID ASSOCIATIVE LINE; AND MEANS FOR SELECTIVELY APPLYING CURRENTS TO SAID DIGIT, WRITE, ASSOCIATIVE AND READ LINES.
Claim 2
Dependent Claim
152 words
IN AN ASSOCIATIVE MEMORY SYSTEM, A STORAGE CELL COMPRISING: A DIGIT LINE; FIRST, SECOND AND THIRD CRYOTRONS, THE GATE OF SAID FIRST CRYOTRON, THE CONTROL OF SAID SECOND CRYOTRON AND THE GATE OF SAID THIRD CRYOTON BEING CONNECTED IN SERIES WITH SAID DIGIT LINE; A FOURTH CRYOTRON, THE GATE THEREOF BEING CONNECTED IN PARALLEL WITH THE GATE OF SAID THIRD CRYOTRON; A BRANCH CIRCUIT CONNECTED IN PARALLEL WITH THE SERIES CONNECTED GATE OF SAID FIRST CRYOTRON AND CONTROL OF SAID SECOND CRYOTRON, SAID BRANCH CIRCUIT INCLUDING THE CONTROL OF SAID FOURTH CRYOTRON; A WRITE LINE INCLUDING THE CONTROL OF SAID FIRST CRYOTRON; AN ASSOCIATIVE LINE INCLUDING THE GATE OF SAID SECOND CRYOTRON; A READ LINE INCLUDING THE CONTROL OF SAID THIRD CRYOTRON; A SHUNT LINE; MEANS FOR SELECTIVELY CONNECTING SAID SHUNT LINE IN PARALLEL WITH SAID ASSOCIATIVE LINE; AND MEANS FOR SELECTIVELY APPLYING CURRENTS TO SAID DIGIT, WRITE, ASSOCIATIVE AND READ LINES.
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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) | 1970-05-22 | 1970-11-21 | 1971-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-22 | 1974-11-21 | 1975-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-22 | 1978-11-21 | 1979-05-23 | $7700.00 | Window Closed / Lapsed |