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Patent US2743362A successfully refreshed from Google Patents.
US2743362A
Expired / Lapsed
US
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Automatic frequency control
Assignee: AT&T Inc
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Filing: 1951-05-24
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Granted: 1956-04-24
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Expires: 1971-05-24
Abstract
No abstract record available.
Inventors
- 👤 Leed Daniel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:57
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/02; H03J7/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2404852A
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US2379689A
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US2464818A
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US2511137A
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US2605425A
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US2541454A
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US2567896A
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US2588742A
Cited
US2588743A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |