US2954475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television camera or like head amplifier arrangements
Assignee: EMI Ltd
•
Filing: 1955-04-05
•
Granted: 1960-09-27
•
Expires: 1975-04-05
Abstract
No abstract record available.
Inventors
- 👤 White Eric Lawrence Casling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:30
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/34; H03F3/343; H04; H04N; H04N23/00; H04N23/40; H03F5/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2148482A
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US2691076A
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US2632040A
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US2789164A
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US2848658A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |