US2628279A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic phase control circuit
Assignee: RCA Corp
•
Filing: 1949-03-31
•
Granted: 1953-02-10
•
Expires: 1969-03-31
Abstract
No abstract record available.
Inventors
- 👤 John H Roe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:33
CPC Classifications
H; H02; H02P; H02P5/00; H02P5/46; H02P5/52; H02P5/56
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1807190A
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US2228079A
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US2399421A
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US2419637A
Cited
US2443195A
Cited
US2428946A
Cited
US2474886A
Cited
US2474829A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-10 | 1956-08-11 | 1957-02-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-10 | 1960-08-11 | 1961-02-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-10 | 1964-08-11 | 1965-02-10 | $7700.00 | Window Closed / Lapsed |