US2730653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cathode-ray tube for reproducing coloured television images
Assignee: Hartford National Bank and Trust Co
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Filing: 1953-03-18
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Granted: 1956-01-10
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Expires: 1973-03-18
Abstract
No abstract record available.
Inventors
- 👤 Schagen Pieter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:59
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/26; H01J2231/00; H01J2231/12; H01J2231/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |