Patent US2494670A successfully refreshed from Google Patents.
US2494670A
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US
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Electronic discharge device
Assignee: RCA Corp
•
Filing: 1946-04-26
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Granted: 1950-01-17
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Expires: 1966-04-26
Abstract
No abstract record available.
Inventors
- 👤 Jan A Rajchman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:40
CPC Classifications
G; G11; G11C; G11C11/00; G11C11/21; G11C11/23; H; H01; H01J; H01J31/00; H01J31/08; H01J31/58; H01J31/66
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1779748A
Cited
US2035003A
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US2122102A
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US2182152A
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US2172859A
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US2301748A
Cited
US2293368A
Cited
US2399429A
Cited
US2424289A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |