Patent US2477581A successfully refreshed from Google Patents.
US2477581A
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Ultra high frequency oscillator
Assignee: Individual
•
Filing: 1943-06-24
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Granted: 1949-08-02
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Expires: 1963-06-24
Abstract
No abstract record available.
Inventors
- 👤 Danziger Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 07:50
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2096459A
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US2060508A
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FR727322A
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US2052888A
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US1941542A
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US2173911A
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US2113340A
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US2175710A
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US2310695A
Cited
US2253849A
Cited
US2298075A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-08-01 | 1953-01-31 | 1953-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-08-01 | 1957-01-31 | 1957-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-08-01 | 1961-01-31 | 1961-08-02 | $7700.00 | Window Closed / Lapsed |