Patent US3210741A successfully refreshed from Google Patents.
US3210741A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drive circuit for magnetic elements
Assignee: GTE Sylvania Inc
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Filing: 1961-05-03
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Granted: 1965-10-05
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Expires: 1981-05-03
Abstract
No abstract record available.
Inventors
- 👤 Edmund U Cohler
- 👤 Michael M Stern
- 👤 Herbert A Ullman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:21
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
146 words
IN AN ELECTRONIC DATA PROCESSING MEMORY: A PLURALITY OF MAGNETIC MEMORY ELEMENTS CAPABLE OF ACHIEVING A DESIRED CONDITION OF REMANENT FLUX IN RESPONSE TO A CURRENT PULSE; A PLURALITY OF CURRENT PULSE CONDUCTORS IN A MATRIX ARRANGEMENT OF ROWS AND COLUMNS LINKING SAID ELEMENTS; A CURRENT DRIVER FOR EACH ROW OF SAID CURRENT PULSE CONDUCTORS; A CURRENT SWITCH FOR EACH COLUMN OF SAID CURRENT PULSE CONDUCTORS; A CURRENT SOURCE; A CURRENT SHUNT, SAID CURRENT SHUNT PROVIDING A BY-PASS FOR CURRENT FLOW FROM SAID CURRENT SOURCE; AND, TIMING CONTROL MEANS FOR CAUSING CURRENT TO FLOW THROUGH SAID CURRENT PULSE CONDUCTORS WHEN SAID CURRENT SHUNT IS ENERGIZED, BY FIRST ENERGIZING SAID CURRENT SWITCH AND CURRENT DRIVER AND THEN DEENERGIZING SAID CURRENT SHUNT, AND FOR DIVERTING CURRENT FROM SAID CURRENT PULSE CONDUCTORS BY FIRST DEENERGIZING SAID CURRENT DRIVER AND ENEGIZING SAID CURRENT SHUNT AND THEN DEENERGIZING SAID CURRENT SWITCH.
Claim 2
Dependent Claim
146 words
IN AN ELECTRONIC DATA PROCESSING MEMORY: A PLURALITY OF MAGNETIC MEMORY ELEMENTS CAPABLE OF ACHIEVING A DESIRED CONDITION OF REMANENT FLUX IN RESPONSE TO A CURRENT PULSE; A PLURALITY OF CURRENT PULSE CONDUCTORS IN A MATRIX ARRANGEMENT OF ROWS AND COLUMNS LINKING SAID ELEMENTS; A CURRENT DRIVER FOR EACH ROW OF SAID CURRENT PULSE CONDUCTORS; A CURRENT SWITCH FOR EACH COLUMN OF SAID CURRENT PULSE CONDUCTORS; A CURRENT SOURCE; A CURRENT SHUNT, SAID CURRENT SHUNT PROVIDING A BY-PASS FOR CURRENT FLOW FROM SAID CURRENT SOURCE; AND, TIMING CONTROL MEANS FOR CAUSING CURRENT TO FLOW THROUGH SAID CURRENT PULSE CONDUCTORS WHEN SAID CURRENT SHUNT IS ENERGIZED, BY FIRST ENERGIZING SAID CURRENT SWITCH AND CURRENT DRIVER AND THEN DEENERGIZING SAID CURRENT SHUNT, AND FOR DIVERTING CURRENT FROM SAID CURRENT PULSE CONDUCTORS BY FIRST DEENERGIZING SAID CURRENT DRIVER AND ENEGIZING SAID CURRENT SHUNT AND THEN DEENERGIZING SAID CURRENT SWITCH.
References Cited (Backward Citations)
US2960681A
Cited
US2939119A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-10-04 | 1969-04-05 | 1969-10-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-04 | 1973-04-05 | 1973-10-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-04 | 1977-04-05 | 1977-10-05 | $7700.00 | Window Closed / Lapsed |