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US3003065A
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Electron multiplier tube circuits
Assignee: AT&T Inc
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Filing: 1957-05-15
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Granted: 1961-10-03
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Expires: 1977-05-15
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Ketchledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 14:50
CPC Classifications
H; H01; H01J; H01J43/00; H01J43/04; H01J43/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2412423A
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US2583132A
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US2758217A
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US2815453A
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US2796531A
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US2840720A
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US2854583A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |