US2462085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra high frequency oscillator
Assignee: International Standard Electric Corp
•
Filing: 1943-12-02
•
Granted: 1949-02-22
•
Expires: 1963-12-02
Abstract
No abstract record available.
Inventors
- 👤 Fremlin John Heaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:26
CPC Classifications
H; H01; H01J; H01J25/00; H01J25/02; H01J25/06; H01J25/08; H03; H03B; H03B5/00; H03B5/18; H03B5/1817; H03B5/1835
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2128236A
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US2167201A
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US2320860A
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US2338306A
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US2289984A
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US2410054A
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US2394008A
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US2398829A
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US2335587A
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US2404078A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-22 | 1952-08-23 | 1953-02-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-22 | 1956-08-23 | 1957-02-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-22 | 1960-08-23 | 1961-02-22 | $7700.00 | Window Closed / Lapsed |