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US2616049A
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US
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Automatic frequency control
Assignee: International Standard Electric Corp
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Filing: 1949-07-09
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Granted: 1952-10-28
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Expires: 1969-07-09
Abstract
No abstract record available.
Inventors
- 👤 Robert S Bailey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:55
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2048079A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-10-28 | 1956-04-28 | 1956-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-10-28 | 1960-04-28 | 1960-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-10-28 | 1964-04-28 | 1964-10-28 | $7700.00 | Window Closed / Lapsed |