Patent US2794863A successfully refreshed from Google Patents.
US2794863A
Expired / Lapsed
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Semiconductor translating device and circuit
Assignee: AT&T Inc
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Filing: 1951-07-20
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Granted: 1957-06-04
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Expires: 1971-07-20
Abstract
No abstract record available.
Inventors
- 👤 Willy W Van Roosbroeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:40
CPC Classifications
H; H03; H03F; H03F17/00; H03F3/00; H03F3/04; H10; H10D; H10D99/00; H10N; H10N80/00; H10N80/10; H10N80/103
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2428400A
Cited
US2402662A
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US2476323A
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US2502479A
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US2600500A
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US2550518A
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US2585078A
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US2553490A
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US2672528A
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US2570978A
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US2561411A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |