Patent US3307050A successfully refreshed from Google Patents.
US3307050A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory switching circuit
Assignee: —
•
Filing: —
•
Granted: 1967-02-28
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Expires: 1984-02-28
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:25
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/18; G10H1/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
198 words
A MEMORY SWITCHING CIRCUIT, COMPRISING: A SOURCE OF CURRENT; MAGNETIC MEMORY SWITCH MEANS HAVING A PAIR OF CURRENT PATHS; A PAIR OF OPERATING COILS SUPPORTED ADJACENT TO SAID MEMORY SWITCH MEANS FOR CLOSING ONE AND OPENING THE OTHER OF SAID CURRENT PATHS WHEN ONE OF SAID OPERATING COILS IS ENERGIZED; A CONTROL SWITCH MEANS INCLUDING A FIRST PORTION CONNECTED BETWEEN SAID CURRENT SOURCE AND SAID MEMORY SWITCH MEANS, AND A SECOND PORTION CONNECTED BETWEEN SAID CURRENT SOURCE AND SAID PAIR OF OPERATING COILS, FOR TRANSMITTING CURRENT TO EITHER SAID MEMORY SWITCH MEANS OR TO SAID OPERATING COILS DEPENDING UPON THE CONDUCTIVE CONDITION OF SAID PORTIONS OF SAID CONTROL SWITCH MEANS; AN OPERATING SWITCH MEANS FOR ENABLING A DIFFERENT ONE OF SAID OPERATING COILS TO BE ENERGIZED BY SAID SECOND PORTION OF SAID CONTROL SWITCH MEANS IN EACH OF TWO SWITCH POSITIONS OF SAID OPERATING SWITCH MEANS; AND A PAIR OF ACTUATING COILS EACH CONNECTED TO A DIFFERENT ONE OF SAID CURRENT PATHS OF SID MEMORY SWITCH MEANS FOR PLACING SAID OPERATING SWITCH MEANS IN THE POSITION SET BY SAID SECOND PORTION OF SAID CONTROL SWITCH MEANS, WHEN SAID FIRST PORTION OF SAID CONTROL SWITCH MEANS IS RENDERED CONDUCTING.
Claim 2
Dependent Claim
198 words
A MEMORY SWITCHING CIRCUIT, COMPRISING: A SOURCE OF CURRENT; MAGNETIC MEMORY SWITCH MEANS HAVING A PAIR OF CURRENT PATHS; A PAIR OF OPERATING COILS SUPPORTED ADJACENT TO SAID MEMORY SWITCH MEANS FOR CLOSING ONE AND OPENING THE OTHER OF SAID CURRENT PATHS WHEN ONE OF SAID OPERATING COILS IS ENERGIZED; A CONTROL SWITCH MEANS INCLUDING A FIRST PORTION CONNECTED BETWEEN SAID CURRENT SOURCE AND SAID MEMORY SWITCH MEANS, AND A SECOND PORTION CONNECTED BETWEEN SAID CURRENT SOURCE AND SAID PAIR OF OPERATING COILS, FOR TRANSMITTING CURRENT TO EITHER SAID MEMORY SWITCH MEANS OR TO SAID OPERATING COILS DEPENDING UPON THE CONDUCTIVE CONDITION OF SAID PORTIONS OF SAID CONTROL SWITCH MEANS; AN OPERATING SWITCH MEANS FOR ENABLING A DIFFERENT ONE OF SAID OPERATING COILS TO BE ENERGIZED BY SAID SECOND PORTION OF SAID CONTROL SWITCH MEANS IN EACH OF TWO SWITCH POSITIONS OF SAID OPERATING SWITCH MEANS; AND A PAIR OF ACTUATING COILS EACH CONNECTED TO A DIFFERENT ONE OF SAID CURRENT PATHS OF SID MEMORY SWITCH MEANS FOR PLACING SAID OPERATING SWITCH MEANS IN THE POSITION SET BY SAID SECOND PORTION OF SAID CONTROL SWITCH MEANS, WHEN SAID FIRST PORTION OF SAID CONTROL SWITCH MEANS IS RENDERED CONDUCTING.
References Cited (Backward Citations)
US3042900A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |