US3094689A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic core memory circuit
Assignee: Atvidabergs Industrier AB
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Filing: 1960-06-20
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Granted: 1963-06-18
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Expires: 1980-06-20
Abstract
No abstract record available.
Inventors
- 👤 Wahlstrom Sven Erik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 14:04
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/02; G11C11/06; G11C11/06007; G11C11/06014
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
A MAGNETIC CORE MEMORY CIRCUIT COMPRISING A PLURALITY OF GROUPS OF MAGNETIC CORES FORMING A MATRIX, EACH CORE OF WHICH HAS A RECTANGULAR HYSTERESIS LOOP, EACH GROUP OF CORES IN SAID ARRAY IS CONNECTED TO AT LEAST ONE COMMON WINDING, NORMALLY CLOSED GATE CIRCUIT MEANS CONNECTED IN SERIES WITH EACH OF SAID WINDINGS FOR SELECTING A CORE, CONTROL MEANS CONNECTED TO SAID GATE MEANS FOR CONTROLLING SAID GATE MEANS, SAID PLURALITY OF WINDINGS CONNECTED TO SAID CORES AND SAID GATE CIRCUIT MEANS CONNECTED THERETO ARE CONNECTED IN PARALLEL BETWEEN TWO
Claim 2
Dependent Claim
90 words
A MAGNETIC CORE MEMORY CIRCUIT COMPRISING A PLURALITY OF GROUPS OF MAGNETIC CORES FORMING A MATRIX, EACH CORE OF WHICH HAS A RECTANGULAR HYSTERESIS LOOP, EACH GROUP OF CORES IN SAID ARRAY IS CONNECTED TO AT LEAST ONE COMMON WINDING, NORMALLY CLOSED GATE CIRCUIT MEANS CONNECTED IN SERIES WITH EACH OF SAID WINDINGS FOR SELECTING A CORE, CONTROL MEANS CONNECTED TO SAID GATE MEANS FOR CONTROLLING SAID GATE MEANS, SAID PLURALITY OF WINDINGS CONNECTED TO SAID CORES AND SAID GATE CIRCUIT MEANS CONNECTED THERETO ARE CONNECTED IN PARALLEL BETWEEN TWO
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) | 1966-06-17 | 1966-12-17 | 1967-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-17 | 1970-12-17 | 1971-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-17 | 1974-12-17 | 1975-06-18 | $7700.00 | Window Closed / Lapsed |