US3079591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Memory devices
Assignee: NCR Voyix Corp
•
Filing: 1959-03-27
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Granted: 1963-02-26
•
Expires: 1979-03-27
Abstract
No abstract record available.
Inventors
- 👤 John R Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:19
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
133 words
AN INFORMATION STORAGE DEVICE COMPRISING, IN COMBINATION, A PLURALITY OF FERROELECTRIC ELEMENTS ARRANGED IN ROWS AND COLUMNS; A CORRESPONDING PLURALITY OF PHOTOCONDUCTIVE ELEMENTS ARRANGED IN ROWS AND COLUMS, EACH PHOTOCONDUCTIVE ELEMENT BEING SERIALLY COUPLED TO A FERROELECTRIC ELEMENT TO FORM A PAIR OF ASSOCIATED ELEMENTS; A PLURALITY OF CONDUCTORS INCLUDING A CONDUCTOR COUPLED TO ALL OF THE PAIRS OF ASSOCIATED ELEMENTS OF EACH ROW AND A CONDUCTOR COUPLED TO ALL OF THE PAIRS OF ASSOCIATED ELEMENTS OF EACH COLUMN, SAID CONDUCTORS BEING EFFECTIVE TO APPLY ELECTRICAL FIELDS ACROSS THE FERROELECTRIC ELEMENTS TO POLARIZE SAID ELEMENTS IN A GIVEN DIRECTION FOR THE STORAGE OF INFORMATION THEREIN; AND FURTHER PHOTOCONDUCTIVE MEANS ASSOCIATED WITH CERTAIN OF SAID CONDUCTORS TO COOPERATE WITH THE FIRST-MENTIONED PHOTOCONDUCTIVE ELEMENTS FOR SELECTING INDIVIDUAL FERROELECTRIC ELEMENTS FOR THE STORAGE OF INFORMATION THEREIN.
Claim 2
Dependent Claim
133 words
AN INFORMATION STORAGE DEVICE COMPRISING, IN COMBINATION, A PLURALITY OF FERROELECTRIC ELEMENTS ARRANGED IN ROWS AND COLUMNS; A CORRESPONDING PLURALITY OF PHOTOCONDUCTIVE ELEMENTS ARRANGED IN ROWS AND COLUMS, EACH PHOTOCONDUCTIVE ELEMENT BEING SERIALLY COUPLED TO A FERROELECTRIC ELEMENT TO FORM A PAIR OF ASSOCIATED ELEMENTS; A PLURALITY OF CONDUCTORS INCLUDING A CONDUCTOR COUPLED TO ALL OF THE PAIRS OF ASSOCIATED ELEMENTS OF EACH ROW AND A CONDUCTOR COUPLED TO ALL OF THE PAIRS OF ASSOCIATED ELEMENTS OF EACH COLUMN, SAID CONDUCTORS BEING EFFECTIVE TO APPLY ELECTRICAL FIELDS ACROSS THE FERROELECTRIC ELEMENTS TO POLARIZE SAID ELEMENTS IN A GIVEN DIRECTION FOR THE STORAGE OF INFORMATION THEREIN; AND FURTHER PHOTOCONDUCTIVE MEANS ASSOCIATED WITH CERTAIN OF SAID CONDUCTORS TO COOPERATE WITH THE FIRST-MENTIONED PHOTOCONDUCTIVE ELEMENTS FOR SELECTING INDIVIDUAL FERROELECTRIC ELEMENTS FOR THE STORAGE OF INFORMATION THEREIN.
References Cited (Backward Citations)
US2885656A
Cited
US2904626A
Cited
US2877376A
Cited
US2905830A
Cited
US2907001A
Cited
US2897399A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-02-25 | 1966-08-27 | 1967-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-25 | 1970-08-27 | 1971-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-25 | 1974-08-27 | 1975-02-26 | $7700.00 | Window Closed / Lapsed |