US2777084A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastic electrode structure for electron tubes
Assignee: General Electric Co
•
Filing: 1952-04-12
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Granted: 1957-01-08
•
Expires: 1972-04-12
Abstract
No abstract record available.
Inventors
- 👤 James M Lafferty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:09
CPC Classifications
H; H04; H04N; H04N9/00; H04N9/12; H04N9/16; H04N9/22; H04N9/26; H01; H01J; H01J31/00; H01J31/08; H01J31/10; H01J31/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2611100A
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US2606303A
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US2663821A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-08 | 1960-07-09 | 1961-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-08 | 1964-07-09 | 1965-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-08 | 1968-07-09 | 1969-01-08 | $7700.00 | Window Closed / Lapsed |