US2534571A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit for cathode-ray tubes and method of operating the same
Assignee: Cinema Television Ltd
•
Filing: 1948-06-24
•
Granted: 1950-12-19
•
Expires: 1968-06-24
Abstract
No abstract record available.
Inventors
- 👤 Buchanan William Hudspith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:33
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/24; H01; H01J; H01J3/00; H01J3/02; H01J3/024
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1864591A
Cited
US2207276A
Cited
US2197033A
Cited
US2239416A
Cited
US2398829A
Cited
US2355795A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-18 | 1954-06-19 | 1954-12-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-18 | 1958-06-19 | 1958-12-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-18 | 1962-06-19 | 1962-12-19 | $7700.00 | Window Closed / Lapsed |