US2989583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron beam control system for vertical strip color tube
Assignee: RCA Corp
•
Filing: 1954-10-20
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Granted: 1961-06-20
•
Expires: 1974-10-20
Abstract
No abstract record available.
Inventors
- 👤 Roger D Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:47
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB616012A
Cited
US2635141A
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US2633547A
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US2689269A
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US2648722A
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US2706216A
Cited
US2664520A
Cited
US2752418A
Cited
US2771503A
Cited
US2837687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |