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US2610248A
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Radio frequency coupling circuit
Assignee: Avco Manufacturing Corp
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Filing: 1949-01-03
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Granted: 1952-09-09
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Expires: 1969-01-03
Abstract
No abstract record available.
Inventors
- 👤 Reid John Drysdale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:36
CPC Classifications
H; H01; H01F; H01F21/00; H01F21/02; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1791236A
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US2131193A
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US2276482A
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US2270539A
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US2397850A
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US2441960A
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US2474988A
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US2401472A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-09 | 1956-03-10 | 1956-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-09 | 1960-03-10 | 1960-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-09 | 1964-03-10 | 1964-09-09 | $7700.00 | Window Closed / Lapsed |