US2552334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electron discharge device and associated circuit
Assignee: RCA Corp
•
Filing: 1945-03-02
•
Granted: 1951-05-08
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Ernest G Linder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 18:53
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2223082A
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US2283935A
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US2316151A
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US2253080A
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US2300052A
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US2367295A
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US2372193A
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US2425748A
Cited
US2394008A
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US2416080A
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US2415749A
Cited
US2457495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |