US2415799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic means for controlling the power fed to an oscillator load
Assignee: Artesyn North America Inc
•
Filing: 1945-03-09
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Granted: 1947-02-11
•
Expires: 1965-03-09
Abstract
No abstract record available.
Inventors
- 👤 Reifel Harry
- 👤 Ervin L Crandell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
H; H05; H05B; H05B6/00; H05B6/46; H05B6/48; H05B6/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1789145A
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US1919976A
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GB439166A
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US2113220A
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US2175694A
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US2251277A
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US2232077A
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US2285620A
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US2282108A
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US2358454A
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US2391085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-02-10 | 1950-08-12 | 1951-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-02-10 | 1954-08-12 | 1955-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-02-10 | 1958-08-12 | 1959-02-11 | $7700.00 | Window Closed / Lapsed |