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US2828438A
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Electric discharge devices
Assignee: General Electric Co
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Filing: 1947-06-26
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Granted: 1958-03-25
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Expires: 1967-06-26
Abstract
No abstract record available.
Inventors
- 👤 Elmer D Mcarthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:51
CPC Classifications
H; H01; H01J; H01J19/00; H01J19/42; H01J19/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2425748A
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US2427693A
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US2400753A
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US2436397A
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US2404261A
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US2428609A
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US2411046A
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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) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |