Patent US6046108A successfully refreshed from Google Patents.
Patent US2747137A successfully refreshed from Google Patents.
US2747137A
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High frequency electrical apparatus
Assignee: General Electric Co
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Filing: 1945-05-12
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Granted: 1956-05-22
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Expires: 1965-05-12
Abstract
No abstract record available.
Inventors
- 👤 Tonks Lewi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:58
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/50; H01J25/52; H01J25/58; H01J25/587
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2084867A
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US2163589A
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US2167201A
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US2144222A
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US2190668A
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US2242404A
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US2243426A
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US2348986A
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US2411151A
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US2435984A
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US2414085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-22 | 1959-11-21 | 1960-05-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-22 | 1963-11-21 | 1964-05-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-22 | 1967-11-21 | 1968-05-22 | $7700.00 | Window Closed / Lapsed |