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US2805334A
Expired / Lapsed
US
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Frequency discriminator circuit arrangement for ultra high-frequency oscillations
Assignee: US Philips Corp
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Filing: 1953-11-27
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Granted: 1957-09-03
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Expires: 1973-11-27
Abstract
No abstract record available.
Inventors
- 👤 Cayzac Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:53
CPC Classifications
H; H03; H03L; H03L7/00; H03L7/02; H03L7/04; H03J; H03J7/00; H03J7/02; H03J7/04; H03J7/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-09-02 | 1961-03-04 | 1961-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-09-02 | 1965-03-04 | 1965-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-09-02 | 1969-03-04 | 1969-09-03 | $7700.00 | Window Closed / Lapsed |