Patent US2727941A successfully refreshed from Google Patents.
US2727941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color television system
Assignee: Allen B du Mont Laboratories Inc
•
Filing: 1951-09-26
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Granted: 1955-12-20
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Expires: 1971-09-26
Abstract
No abstract record available.
Inventors
- 👤 Norman C Fulmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:14
CPC Classifications
H; H04; H04N; H04N11/00; H04N11/06; H04N11/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2378746A
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US2546972A
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US2539440A
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US2530431A
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US2586635A
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US2587074A
Cited
US2618701A
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US2657257A
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 |