Patent US2495020A successfully refreshed from Google Patents.
US2495020A
Expired / Lapsed
US
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Selector for signal seeking tuning systems
Assignee: COLONIAL RADIO Corp
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Filing: 1944-04-19
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Granted: 1950-01-17
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Expires: 1964-04-19
Abstract
No abstract record available.
Inventors
- 👤 Marion J Pifer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:58
CPC Classifications
H; H03; H03J; H03J7/00; H03J7/18; H03J7/30; H03J5/00; H03J5/02; H03J5/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2182352A
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US2297618A
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US2382203A
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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) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |