US2811637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency turret tuner with uniform band spread on all bands
Assignee: Standard Coil Products Co Inc
•
Filing: 1953-05-26
•
Granted: 1957-10-29
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Expires: 1973-05-26
Abstract
No abstract record available.
Inventors
- 👤 John P O'brien
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:53
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/004; H03; H03J; H03J5/00; H03J5/24; H03J5/26; H03J5/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2078909A
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US2137266A
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US2150553A
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US2423152A
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US2430886A
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US2469941A
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US2551228A
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US2632803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |