US2595677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge device
Assignee: RCA Corp
•
Filing: 1948-05-27
•
Granted: 1952-05-06
•
Expires: 1968-05-27
Abstract
No abstract record available.
Inventors
- 👤 Russell R Law
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:07
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/78; H01J19/80
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2130280A
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US2217745A
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US2108900A
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US2167201A
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US2107520A
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US2153728A
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US2167519A
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US2295396A
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US2358542A
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GB588185A
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US2437279A
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US2423819A
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US2432193A
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US2451987A
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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) | 1955-05-06 | 1955-11-05 | 1956-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-06 | 1959-11-05 | 1960-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-06 | 1963-11-05 | 1964-05-06 | $7700.00 | Window Closed / Lapsed |