US2604534A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling scanning accuracy of cathode-ray tubes
Assignee: Cinema Television Ltd
•
Filing: 1946-12-04
•
Granted: 1952-07-22
•
Expires: 1966-12-04
Abstract
No abstract record available.
Inventors
- 👤 George E G Graham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:28
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24; H04N5/00; H04N5/222; H04N5/257
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2385563A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-22 | 1956-01-21 | 1956-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-22 | 1960-01-21 | 1960-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-22 | 1964-01-21 | 1964-07-22 | $7700.00 | Window Closed / Lapsed |