US2550178A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Direct current reinsertion circuit for television systems
Assignee: RCA Corp
•
Filing: 1946-11-21
•
Granted: 1951-04-24
•
Expires: 1966-11-21
Abstract
No abstract record available.
Inventors
- 👤 Karl R Wendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:39
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/14; H04N5/16; H04N5/18; H04N5/185
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2208927A
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US2244240A
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US2258732A
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US2303909A
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US2307375A
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FR858486A
Cited
US2284085A
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US2259538A
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US2302425A
Cited
US2299945A
Cited
US2358545A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-23 | 1954-10-23 | 1955-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-23 | 1958-10-23 | 1959-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-23 | 1962-10-23 | 1963-04-24 | $7700.00 | Window Closed / Lapsed |