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Patent US2439245A successfully refreshed from Google Patents.
US2439245A
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Resistance-capacitance type oscillator
Assignee: Lanteris Space LLC
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Filing: 1945-06-02
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Granted: 1948-04-06
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Expires: 1965-06-02
Abstract
No abstract record available.
Inventors
- 👤 James C Dunn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:40
CPC Classifications
H; H03; H03B; H03B5/00; H03B5/20; H03B5/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1897639A
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US2186571A
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US2173427A
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US2298177A
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US2268872A
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US2319965A
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US2386892A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-04-06 | 1951-10-06 | 1952-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-04-06 | 1955-10-06 | 1956-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-04-06 | 1959-10-06 | 1960-04-06 | $7700.00 | Window Closed / Lapsed |