Patent US2686219A successfully refreshed from Google Patents.
US2686219A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television system
Assignee: RCA Corp
•
Filing: 1951-04-09
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Granted: 1954-08-10
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Expires: 1971-04-09
Abstract
No abstract record available.
Inventors
- 👤 Nils E Lindenblad
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:55
CPC Classifications
H; H04; H04N; H04N11/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2163540A
Cited
US2378746A
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US2339646A
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US2389039A
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US2518199A
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US2560168A
Cited
US2545957A
Cited
US2594740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-09 | 1958-02-08 | 1958-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-09 | 1962-02-08 | 1962-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-09 | 1966-02-08 | 1966-08-10 | $7700.00 | Window Closed / Lapsed |