Patent US723471A successfully refreshed from Google Patents.
Patent US2596623A successfully refreshed from Google Patents.
US2596623A
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Radio-frequency oscillator power supply system
Assignee: Hartford National Bank and Trust Co
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Filing: 1948-02-18
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Granted: 1952-05-13
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Expires: 1968-02-18
Abstract
No abstract record available.
Inventors
- 👤 Jacob Van Slooten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:15
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50; H02; H02M; H02M3/00; H02M3/22; H02M3/24; H02M3/28; H02M3/325; H02M3/33; H02M7/00; H02M7/42; H02M7/44; H02M7/445; H03; H03B; H03B5/00; H03B5/08; H03B5/10; H03L; H03L5/00
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) | 1955-05-13 | 1955-11-12 | 1956-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-13 | 1959-11-12 | 1960-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-13 | 1963-11-12 | 1964-05-13 | $7700.00 | Window Closed / Lapsed |