US3105226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic memory arrays
Assignee: AT&T Inc
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Filing: 1961-04-24
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Granted: 1963-09-24
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Expires: 1981-04-24
Abstract
No abstract record available.
Inventors
- 👤 Andrew H Bobeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:55
CPC Classifications
G; G11; G11C; G11C7/00; G11C11/00; G11C11/02; G11C11/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
141 words
A MATRIX ARRAY COMPRISING A PLURALITY OF MAGNETIC ELEMENTS HAVING TWO STABLE REMANENT MAGNETIZATION STATES ARRANGED IN ROWS AND COLUMNS, FIRST CONDUCTOR MEANS COUPLED TO EVERY ELEMENT IN EACH OF SAID ROWS, SECOND CONDUCTOR MEANS COUPLED TO EVERY ELEMENT IN EACH OF SAID COLUMNS, MEANS SELECTIVELY CONNECTABLE TO SAID ROW AND COLUMN CONDUCTOR MEANS FOR APPLYING CURRENT PULSES OF A FIRST MAGNITUDE, RISE TIME AND DURATION TO SET SAID ELEMENTS IN A FIRST ONE OF SAID TWO STABLE STATES, MEANS FOR SELECTIVELY APPLYING CURRENT PULSES OF A SECOND MAGNITUDE, RISE TIME AND DURATION TO SAID ROW CONDUCTOR MEANS TO SET SAID ELEMENTS IN THE SECOND ONE OF SAID TWO STABLE STATES, AND MEANS INCLUDING FILTER MEANS CONNECTED TO SAID SECOND CONDUCTOR MEANS FOR DETECTING INDUCED VOLTAGES IN SAID SECOND CONDUCTOR MEANS IN RESPONSE TO THE APPLICATION OF SAID SECOND CURRENT PULSES.
Claim 2
Dependent Claim
141 words
A MATRIX ARRAY COMPRISING A PLURALITY OF MAGNETIC ELEMENTS HAVING TWO STABLE REMANENT MAGNETIZATION STATES ARRANGED IN ROWS AND COLUMNS, FIRST CONDUCTOR MEANS COUPLED TO EVERY ELEMENT IN EACH OF SAID ROWS, SECOND CONDUCTOR MEANS COUPLED TO EVERY ELEMENT IN EACH OF SAID COLUMNS, MEANS SELECTIVELY CONNECTABLE TO SAID ROW AND COLUMN CONDUCTOR MEANS FOR APPLYING CURRENT PULSES OF A FIRST MAGNITUDE, RISE TIME AND DURATION TO SET SAID ELEMENTS IN A FIRST ONE OF SAID TWO STABLE STATES, MEANS FOR SELECTIVELY APPLYING CURRENT PULSES OF A SECOND MAGNITUDE, RISE TIME AND DURATION TO SAID ROW CONDUCTOR MEANS TO SET SAID ELEMENTS IN THE SECOND ONE OF SAID TWO STABLE STATES, AND MEANS INCLUDING FILTER MEANS CONNECTED TO SAID SECOND CONDUCTOR MEANS FOR DETECTING INDUCED VOLTAGES IN SAID SECOND CONDUCTOR MEANS IN RESPONSE TO THE APPLICATION OF SAID SECOND CURRENT PULSES.
References Cited (Backward Citations)
US2845611A
Cited
US2958074A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-23 | 1967-03-25 | 1967-09-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-23 | 1971-03-25 | 1971-09-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-23 | 1975-03-25 | 1975-09-24 | $7700.00 | Window Closed / Lapsed |