US2791758A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Semiconductive translating device
Assignee: AT&T Inc
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Filing: 1955-02-18
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Granted: 1957-05-07
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Expires: 1975-02-18
Abstract
No abstract record available.
Inventors
- 👤 Duncan H Looney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:40
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/45; G; G11; G11C; G11C11/00; G11C11/21; G11C11/22; G11C16/00; G11C16/02; G11C16/04; G11C16/0466; H01; H01G; H01G7/00; H01G7/02; H01G7/021; H01J; H01J35/00; H01J35/02; H01J35/04; H03K3/35; H10; H10D; H10D30/00; H10D30/60; H10D30/701; H10D64/00; H10D64/60; H10D64/66; H10D64/68; H10D64/689; H10D99/00; G11C11/223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
APPARATUS WHICH COMPRISES A BODY OF SEMICONDUCTIVE MATERIAL HAVING A BULK PORTION OF ONE CONDUCTIVITY TYPE AND A SURFACE REGION OF THE OPPOSITE CONDUCTIVITY TYPE, A PAIR OF SPACED LOW RESISTANCE, SUBSTANTIALLY NONRECTIFYING CONNECTIONS TO SAID SURFACE REGION, A BODY OF FERROELECTRIC MATERIAL IN CLOSE PROXIMITY TO SAID SURFACE REGION INTERMEDIATE SAID CONNECTION, AND AN ELECTRODE SPACE FROM SAID SEMICONDUCTIVE BODY AND MOUNTED AGAINST SADI FERROELECTRIC BODY.
Claim 2
Dependent Claim
67 words
APPARATUS WHICH COMPRISES A BODY OF SEMICONDUCTIVE MATERIAL HAVING A BULK PORTION OF ONE CONDUCTIVITY TYPE AND A SURFACE REGION OF THE OPPOSITE CONDUCTIVITY TYPE, A PAIR OF SPACED LOW RESISTANCE, SUBSTANTIALLY NONRECTIFYING CONNECTIONS TO SAID SURFACE REGION, A BODY OF FERROELECTRIC MATERIAL IN CLOSE PROXIMITY TO SAID SURFACE REGION INTERMEDIATE SAID CONNECTION, AND AN ELECTRODE SPACE FROM SAID SEMICONDUCTIVE BODY AND MOUNTED AGAINST SADI FERROELECTRIC BODY.
References Cited (Backward Citations)
US2773250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |