US3142045A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical information handling circuit
Assignee: AT&T Inc
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Filing: 1962-11-28
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Granted: 1964-07-21
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Expires: 1982-11-28
Abstract
No abstract record available.
Inventors
- 👤 Andrew H Bobeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:16
CPC Classifications
G; G11; G11C; G11C19/00; G11C19/02; G11C19/10; B; B26; B26B; B26B21/00; B26B21/40; G11C19/005; G11C19/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A SHIFT REGISTER CIRCUIT COMPRISING A SLAB OF FERROELECTRIC MATERIAL HAVING SUBSTANTIALLY RECTANGULAR CHARGEVOLTAGE CHARACTERISTICS, SEGMENTS OF SAID SLAB BEING ELECTROSTATICALLY UNSTABLE WHEN POLARIZED IN LENGTHS LESS THAN A MINIMUM DIMENSION AS DETERMINED BY THE ELECTROSTATIC INTERACTIONS OF THE REMAINDER OF SAID SLAB AND SAID SEGMENTS, A PLURALITY OF PAIRS OF ELECTRODES ON OPPOSITE SIDES OF SAID SLAB, SAID ELECTRODE PAIRS DETERMINING A PLURALITY OF CAPACITOR SEGMENTS EACH BEING LESS THAN SAID MINIMUM DIMENSION AND HAVING SAID FERROELECTRIC MATERIAL AS A DIELECTRIC, A PLURALITY OF INFORMATION ADDRESS GROUPS EACH COMPRISING A PREDETERMINED NUMBER OF ADJACENT SAID CAPACITOR SEGMENTS EACH BEING NORMALLY POLARIZED IN ONE DIRECTION, EACH OF SAID ADDRESS GROUPS BEING GREATER THAN SAID MINIMUM DIMENSION, AND MEANS FOR INTRODUCING A BINARY INFORMATION VALUE INTO A FIRST ADDRESS GROUP COMPRISING MEANS FOR SWITCHING THE POLARIZATION OF EACH OF THE CAPACITOR SEGMENTS OF SAID FIRST GROUP TO A POLARIZATION IN THE OTHER DIRECTION.
Claim 2
Dependent Claim
152 words
A SHIFT REGISTER CIRCUIT COMPRISING A SLAB OF FERROELECTRIC MATERIAL HAVING SUBSTANTIALLY RECTANGULAR CHARGEVOLTAGE CHARACTERISTICS, SEGMENTS OF SAID SLAB BEING ELECTROSTATICALLY UNSTABLE WHEN POLARIZED IN LENGTHS LESS THAN A MINIMUM DIMENSION AS DETERMINED BY THE ELECTROSTATIC INTERACTIONS OF THE REMAINDER OF SAID SLAB AND SAID SEGMENTS, A PLURALITY OF PAIRS OF ELECTRODES ON OPPOSITE SIDES OF SAID SLAB, SAID ELECTRODE PAIRS DETERMINING A PLURALITY OF CAPACITOR SEGMENTS EACH BEING LESS THAN SAID MINIMUM DIMENSION AND HAVING SAID FERROELECTRIC MATERIAL AS A DIELECTRIC, A PLURALITY OF INFORMATION ADDRESS GROUPS EACH COMPRISING A PREDETERMINED NUMBER OF ADJACENT SAID CAPACITOR SEGMENTS EACH BEING NORMALLY POLARIZED IN ONE DIRECTION, EACH OF SAID ADDRESS GROUPS BEING GREATER THAN SAID MINIMUM DIMENSION, AND MEANS FOR INTRODUCING A BINARY INFORMATION VALUE INTO A FIRST ADDRESS GROUP COMPRISING MEANS FOR SWITCHING THE POLARIZATION OF EACH OF THE CAPACITOR SEGMENTS OF SAID FIRST GROUP TO A POLARIZATION IN THE OTHER DIRECTION.
References Cited (Backward Citations)
US2717372A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-07-21 | 1968-01-20 | 1968-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-07-21 | 1972-01-20 | 1972-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-07-21 | 1976-01-20 | 1976-07-21 | $7700.00 | Window Closed / Lapsed |