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US2694024A
Expired / Lapsed
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Semiconductor bodies for signal translating devices
Assignee: AT&T Inc
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Filing: 1952-07-26
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Granted: 1954-11-09
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Expires: 1972-07-26
Abstract
No abstract record available.
Inventors
- 👤 Walter L Bond
- 👤 Sparks Morgan
- 👤 Gerdon K Teal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C30; C30B; C30B15/00; C30B15/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A ROD OF SEMICONDUCTOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM AND SILICON CONSISTING OF TWO LONGITUDINALLY SINGLE CRYSTALS OF N-TYPE ELECTRICAL CONDUCTIVITY HAVING CRYSTALLINE ORIENTATIONS DIFFERING BY ABOUT TEN DEGREES, SAID CRYSTALS BEING PHYSICALLY CONTINUOUS ACROSS AN INTERVENING REGION OF P-TYPE ELECTRICAL CONDUCTIVITY, THE (111) PLANES OF THE CRYSTALS BEING TRANSVERSE TO THE ROD.
Claim 2
Dependent Claim
56 words
A ROD OF SEMICONDUCTOR MATERIAL SELECTED FROM THE GROUP CONSISTING OF GERMANIUM AND SILICON CONSISTING OF TWO LONGITUDINALLY SINGLE CRYSTALS OF N-TYPE ELECTRICAL CONDUCTIVITY HAVING CRYSTALLINE ORIENTATIONS DIFFERING BY ABOUT TEN DEGREES, SAID CRYSTALS BEING PHYSICALLY CONTINUOUS ACROSS AN INTERVENING REGION OF P-TYPE ELECTRICAL CONDUCTIVITY, THE (111) PLANES OF THE CRYSTALS BEING TRANSVERSE TO THE ROD.
References Cited (Backward Citations)
US2402661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |