US3555524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic logical memory device
Assignee: Individual
•
Filing: 1966-08-10
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Granted: 1971-01-12
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Expires: 1986-08-10
Abstract
Abstract A TWO-APERTURE MEMORY DEVICE, MADE OF MAGNETIC MATERIAL AND PROVIDED WITH OUTPUT SIGNAL, NONDESTRUCTIVE INTERROGATION, WRITING AND DESTRUCTIVE READOUT WINDINGS, TO PERFORM NONDESTRUCTIVE INTERROGATION USING THE REVERSIBLE REMANENT COMPONENT AND TO CARRY OUT IN THE INTERROGATION THE LOGICAL OPERATIONS BETWEEN STORED AND INTERROGATED INFORMATION, THERE BEING TWO CORES ARRANGED IN ONE PLANE OR IN MUTUALLY PERPENDICULAR PLANES AND HAVING A COMMON CROSSPIECE PORTION, WHEREAS THE FLUX-PATH CROSSSECTIONAL AREAS OF THE FIRST CORE AND OF THE SECOND CORE ARE EQUAL TO THE CROSS-SECTIONAL AREA OF THE COMMON CROSSPIECE PORTION.
Inventors
- 👤 Evgeny Ivanovich Ilyashenko
- 👤 Vladimir Fedorovich Rudakov
- 👤 Boris Sergeevich Bekin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:32
CPC Classifications
G; G11; G11C; G11C15/00; G11C15/06; H; H03; H03K; H03K19/00; H03K19/02; H03K19/16; H03K19/166
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-11 | 1974-07-13 | 1975-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-11 | 1978-07-13 | 1979-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-11 | 1982-07-13 | 1983-01-12 | $7700.00 | Window Closed / Lapsed |