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US3419787A
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US
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Semiconductor circuit for a-c to d-c conversion or frequency multiplication
Assignee: Collins Radio Co
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Filing: 1966-08-08
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Granted: 1968-12-31
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Expires: 1986-08-08
Abstract
No abstract record available.
Inventors
- 👤 Herbert K Baehre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:43
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03B; H03B19/00; H03B19/06; H03B19/14; H03B2200/00; H03B2200/006; H03B2200/0062; H03D; H03D1/00; H03D1/14; H03D1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2782267A
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US2827611A
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US2770728A
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US3153187A
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US2972685A
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US3077545A
Cited
US3287620A
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US3188495A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-31 | 1972-07-01 | 1972-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-31 | 1976-07-01 | 1976-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-31 | 1980-07-01 | 1980-12-31 | $7700.00 | Window Closed / Lapsed |