US3132326A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ferroelectric data storage system and method
Assignee: Control Data Corp
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Filing: 1960-03-16
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Granted: 1964-05-05
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Expires: 1980-03-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph W Crownover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:40
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/22; H; H03; H03K; H03K17/00; H03K17/51; H03K17/80; H03K17/81; H03K19/00; H03K19/0175; H03K19/018; H03K19/01806
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A FERROELECTRIC DATA STORAGE SYSTEM F THE TYPE IN CLUDING A PLURALITY OF CONDENSERS EACH HAVING A DIELECTRIC OF A FERROELECTRIC MATERIAL, SAID FERROELECTRIC MATERIAL HAVING A HYSTERESIS CHARACTERISTIC IN WHICH THE SLOPE IS DIFFERENT ON EITHER SIDE OF THE POINTS OF "ZERO" APPLIED VOLTAGE, SAID CONDENSERS BEING ARRAYED IN COLUMNS AND ROWS, A PLURALITY OF ROW ELECTRODES EACH OF WHICH IS COUPLED TO ONE PLATE OF ALL OF THE CONDENSERS IN A DIFFERENT ONE OF SAID ROWS, A PLURALITY OF COLUMN ELECTRODES EACH OF WHICH IS COUPLED TO ALL OF THE CONDENSERS IN A DIFFERENT ONE OF
Claim 2
Dependent Claim
98 words
A FERROELECTRIC DATA STORAGE SYSTEM F THE TYPE IN CLUDING A PLURALITY OF CONDENSERS EACH HAVING A DIELECTRIC OF A FERROELECTRIC MATERIAL, SAID FERROELECTRIC MATERIAL HAVING A HYSTERESIS CHARACTERISTIC IN WHICH THE SLOPE IS DIFFERENT ON EITHER SIDE OF THE POINTS OF "ZERO" APPLIED VOLTAGE, SAID CONDENSERS BEING ARRAYED IN COLUMNS AND ROWS, A PLURALITY OF ROW ELECTRODES EACH OF WHICH IS COUPLED TO ONE PLATE OF ALL OF THE CONDENSERS IN A DIFFERENT ONE OF SAID ROWS, A PLURALITY OF COLUMN ELECTRODES EACH OF WHICH IS COUPLED TO ALL OF THE CONDENSERS IN A DIFFERENT ONE OF
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) | 1967-05-05 | 1967-11-04 | 1968-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-05 | 1971-11-04 | 1972-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-05 | 1975-11-04 | 1976-05-05 | $7700.00 | Window Closed / Lapsed |