Patent US2624100A successfully refreshed from Google Patents.
US2624100A
Expired / Lapsed
US
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Grid electrode for electron discharge devices
Assignee: International Standard Electric Corp
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Filing: 1945-01-18
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Granted: 1953-01-06
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Expires: 1965-01-18
Abstract
No abstract record available.
Inventors
- 👤 Foulkes Christopher Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:44
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/28; H01J19/38; H01J2893/00; H01J2893/0001; H01J2893/0012; H01J2893/0015; H01J2893/0016
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1106516A
Cited
US1472505A
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US1822370A
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US2048225A
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US2054119A
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US2386018A
Cited
US2282392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-06 | 1956-07-07 | 1957-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-06 | 1960-07-07 | 1961-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-06 | 1964-07-07 | 1965-01-06 | $7700.00 | Window Closed / Lapsed |