Patent US2728026A successfully refreshed from Google Patents.
US2728026A
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Circuit-arrangement for scanning equidistant lines on a screen of a cathode-ray tubeand cathode-ray tube for use in such a circuit
Assignee: Hartford National Bank and Trust Co
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Filing: 1951-12-26
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Granted: 1955-12-20
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Expires: 1971-12-26
Abstract
No abstract record available.
Inventors
- 👤 Adrianus Johannes Wilhel Marie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:43
CPC Classifications
H; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24; H01J2231/00; H01J2231/12; H01J2231/121
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2630548A
Cited
FR868403A
Cited
US2415059A
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US2490812A
Cited
US2530431A
Cited
US2530275A
Cited
US2589386A
Cited
US2684454A
Cited
US2545325A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-19 | 1959-06-20 | 1959-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-19 | 1963-06-20 | 1963-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-19 | 1967-06-20 | 1967-12-20 | $7700.00 | Window Closed / Lapsed |