US2629081A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency inductor
Assignee: Collins Radio Co
•
Filing: 1950-04-26
•
Granted: 1953-02-17
•
Expires: 1970-04-26
Abstract
No abstract record available.
Inventors
- 👤 Merle R Hubbard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:36
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/005; H03; H03H; H03H5/00; H03H5/003
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US926934A
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US2382435A
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US2384504A
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US2510272A
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US2491480A
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US2453994A
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US2467737A
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US2445700A
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US2446003A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |