US2462909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-frequency generator
Assignee: STC PLC
•
Filing: 1944-06-26
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Granted: 1949-03-01
•
Expires: 1964-06-26
Abstract
No abstract record available.
Inventors
- 👤 Jr Carl A Segerstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:37
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)
US2226653A
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US2284405A
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US2353743A
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US2353742A
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US2367331A
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US2367332A
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US2400753A
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US2404261A
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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) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |