Patent US3102999A successfully refreshed from Google Patents.
US3102999A
Expired / Lapsed
US
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Magnetic memory arrangement
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1960-04-06
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Granted: 1963-09-03
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Expires: 1980-04-06
Abstract
No abstract record available.
Inventors
- 👤 Bernemyr Rune Bernhard
- 👤 Lindberg Karl Gosta Herbert
- 👤 Magnusson Bengt Gunnar
- 👤 Svala Carl Gunnar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:17
CPC Classifications
G; G11; G11C; G11C17/00; G11C17/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A MAGNETIC MEMORY DEVICE COMPRISING AT LEAST TWO FEEDING CONDUCTORS AND TWO READING CONDUCTORS, TWO PLATES HAVING SUBSTANTIALLY HIGH PERMEABILITY, A CONDUCTIVE PLATE, SAID CONDUCTIVE PLATE AND SAID TWO FEEDING AND READING CONDUCTORS BEING SECURED TO SAID TWO PLATES INTERMEDIATE SAID TWO PLATES, EACH OF SAID TWO FEEDING CONDUCTORS AND EACH OF SAID TWO READING CONDUCTORS BEING IN SPACED-APART PARALLEL RELATION, SAID TWO PARALLEL FEEDING CONDUCTORS BEING DISPOSED IN A DIRECTION PERPENDICULAR TO SAID TWO PARALLEL READING CONDUCTORS, WHEREBY SAID TWO FEEDING AND READING CONDUCTORS OVERLIE ONE ANOTHER AT FOUR POINTS, AT LEAST ONE SLOT IN SAID CONDUCTIVE PLATE EXTENDING THROUGH ONE OF SAID FOUR POINTS IN A PLANE TRANSVERSE TO SAID CONDUCTORS, SAID FEEDING CONDUCTORS BEING
Claim 2
Dependent Claim
117 words
A MAGNETIC MEMORY DEVICE COMPRISING AT LEAST TWO FEEDING CONDUCTORS AND TWO READING CONDUCTORS, TWO PLATES HAVING SUBSTANTIALLY HIGH PERMEABILITY, A CONDUCTIVE PLATE, SAID CONDUCTIVE PLATE AND SAID TWO FEEDING AND READING CONDUCTORS BEING SECURED TO SAID TWO PLATES INTERMEDIATE SAID TWO PLATES, EACH OF SAID TWO FEEDING CONDUCTORS AND EACH OF SAID TWO READING CONDUCTORS BEING IN SPACED-APART PARALLEL RELATION, SAID TWO PARALLEL FEEDING CONDUCTORS BEING DISPOSED IN A DIRECTION PERPENDICULAR TO SAID TWO PARALLEL READING CONDUCTORS, WHEREBY SAID TWO FEEDING AND READING CONDUCTORS OVERLIE ONE ANOTHER AT FOUR POINTS, AT LEAST ONE SLOT IN SAID CONDUCTIVE PLATE EXTENDING THROUGH ONE OF SAID FOUR POINTS IN A PLANE TRANSVERSE TO SAID CONDUCTORS, SAID FEEDING CONDUCTORS BEING
References Cited (Backward Citations)
US2825892A
Cited
US2825891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |