Patent US2695973A successfully refreshed from Google Patents.
US2695973A
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Reflex traveling wave amplifier
Assignee: Leland Stanford Junior University
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Filing: 1949-10-27
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Granted: 1954-11-30
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Expires: 1969-10-27
Abstract
No abstract record available.
Inventors
- 👤 Edward L Ginzton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:11
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/22; H01J25/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2122538A
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US2153728A
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US2241976A
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US2367295A
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US2450026A
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US2452075A
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US2462085A
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US2468152A
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US2472038A
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US2509374A
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US2579654A
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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) | 1957-11-29 | 1958-05-31 | 1958-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-29 | 1962-05-31 | 1962-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-29 | 1966-05-31 | 1966-11-30 | $7700.00 | Window Closed / Lapsed |