Patent US2787724A successfully refreshed from Google Patents.
US2787724A
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US
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Electronic storage tubes
Assignee: EMI Ltd
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Filing: 1953-09-09
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Granted: 1957-04-02
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Expires: 1973-09-09
Abstract
No abstract record available.
Inventors
- 👤 Webley Reginald Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:39
CPC Classifications
G; G04; G04D; G04D3/00; G04D3/08; G04D3/083; G04D3/086; H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/60; H01J31/62; H01J31/64
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2245364A
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US2280191A
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US2549072A
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US2451005A
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FR1004276A
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US2547638A
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US2667596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-04-01 | 1960-10-01 | 1961-04-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-04-01 | 1964-10-01 | 1965-04-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-04-01 | 1968-10-01 | 1969-04-02 | $7700.00 | Window Closed / Lapsed |