US3289177A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic storage matrix capable of storing fixed words
Assignee: US Philips Corp
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Filing: 1962-05-08
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Granted: 1966-11-29
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Expires: 1982-05-08
Abstract
No abstract record available.
Inventors
- 👤 Schulte Anthonius Maria
- 👤 Steenberg Johannes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 16:15
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A MAGNETIC STORAGE MATRIX COMPRISING A PLURALITY OF MAGNETIC CORES, EACH OF SAID CORES BEING COMPOSED OF A MAGNETIC MATERIAL HAVING A LARGE REMANANCE AND A SUBSTANTIALLY RECTANGULAR HYSTERESIS LOOP, A FIRST SET OF ELECTRICAL CONDUCTORS AND A SECOND SET OF ELECTRICAL CONDUCTORS, EACH OF SAID CORES BEING INDUCTIVELY COUPLED WITH A CONDUCTOR OF SAID FIRST SET OF CONDUCTORS AND WITH A CONDUCTOR OF SAID SECOND SET OF CONDUCTORS, AND MEANS FOR EFFECTIVELY DISABLING SELECTED ONES OF SAID CORES COMPRISING A SHORT CIRCUIT PATH FOR ELECTRIC CURRENT ENCIRCLING SAID SELECTED ONES OF SAID CORES, SAID SHORT CIRCUIT PATH COMPRISING A LAYER OF ELECTRICALLY CONDUCTIVE PAINT ON EACH OF SAID SELECTED CORES AND COVERING AT LEAST A PORTION OF SAID CORES.
Claim 2
Dependent Claim
120 words
A MAGNETIC STORAGE MATRIX COMPRISING A PLURALITY OF MAGNETIC CORES, EACH OF SAID CORES BEING COMPOSED OF A MAGNETIC MATERIAL HAVING A LARGE REMANANCE AND A SUBSTANTIALLY RECTANGULAR HYSTERESIS LOOP, A FIRST SET OF ELECTRICAL CONDUCTORS AND A SECOND SET OF ELECTRICAL CONDUCTORS, EACH OF SAID CORES BEING INDUCTIVELY COUPLED WITH A CONDUCTOR OF SAID FIRST SET OF CONDUCTORS AND WITH A CONDUCTOR OF SAID SECOND SET OF CONDUCTORS, AND MEANS FOR EFFECTIVELY DISABLING SELECTED ONES OF SAID CORES COMPRISING A SHORT CIRCUIT PATH FOR ELECTRIC CURRENT ENCIRCLING SAID SELECTED ONES OF SAID CORES, SAID SHORT CIRCUIT PATH COMPRISING A LAYER OF ELECTRICALLY CONDUCTIVE PAINT ON EACH OF SAID SELECTED CORES AND COVERING AT LEAST A PORTION OF SAID CORES.
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) | 1969-11-28 | 1970-05-30 | 1970-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-28 | 1974-05-30 | 1974-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-28 | 1978-05-30 | 1978-11-29 | $7700.00 | Window Closed / Lapsed |