US2914276A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable inductance device
Assignee: Radio Industries Inc
•
Filing: 1955-07-06
•
Granted: 1959-11-24
•
Expires: 1975-07-06
Abstract
No abstract record available.
Inventors
- 👤 John J Antalek
- 👤 Robert W Saville
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 17:17
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/02; H01F27/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1697317A
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US1665930A
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US1867206A
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US1960227A
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US1958126A
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US1985317A
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US2244977A
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US2244356A
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US2476407A
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US2649558A
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US2644978A
Cited
US2751563A
Cited
US2807869A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |