Patent US2913684A successfully refreshed from Google Patents.
US2913684A
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US
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Conductive cavities
Assignee: General Electric Co
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Filing: 1955-02-18
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Granted: 1959-11-17
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Expires: 1975-02-18
Abstract
No abstract record available.
Inventors
- 👤 John W Downie
- 👤 Winston I Tirrell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:41
CPC Classifications
H; H03; H03F; H03F3/00; H03F3/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2782383A
Cited
US2551672A
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US2410109A
Cited
US2501181A
Cited
US2600278A
Cited
US2737631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-16 | 1963-05-18 | 1963-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-16 | 1967-05-18 | 1967-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-16 | 1971-05-18 | 1971-11-17 | $7700.00 | Window Closed / Lapsed |