Patent US2855550A successfully refreshed from Google Patents.
US2855550A
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US
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Variable capacitors
Assignee: Emerson Radio Corp
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Filing: 1953-12-24
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Granted: 1958-10-07
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Expires: 1973-12-24
Abstract
No abstract record available.
Inventors
- 👤 Bayha Jack Elliott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:07
CPC Classifications
H; H01; H01G; H01G5/00; H01G5/04; H01G5/12; H01G5/01; H01G5/013; H01G5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2597341A
Cited
US1555253A
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US1559974A
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US2081914A
Cited
GB649316A
Cited
GB648583A
Cited
US2607826A
Cited
FR1056401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-06 | 1962-04-07 | 1962-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-06 | 1966-04-07 | 1966-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-06 | 1970-04-07 | 1970-10-07 | $7700.00 | Window Closed / Lapsed |