US3444422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for correcting the pin-cushion distortion upon deflection of an electron beam in a display tube
Assignee: US Philips Corp
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Filing: 1965-10-28
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Granted: 1969-05-13
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Expires: 1985-10-28
Abstract
No abstract record available.
Inventors
- 👤 Jorg Wolber
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:04
CPC Classifications
H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22; H04N3/23; H04N3/237; C; C04; C04B; C04B26/00; C04B26/02; C04B26/04; C04B26/06; H04N9/00; H04N9/12; H04N9/16; H04N9/28
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) | 1972-05-12 | 1972-11-11 | 1973-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-05-12 | 1976-11-11 | 1977-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-05-12 | 1980-11-11 | 1981-05-13 | $7700.00 | Window Closed / Lapsed |