US3113257A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control circuit for unidirectional power supply utilizing a magnetic amplifier
Assignee: McGraw Edison Co
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Filing: 1960-08-15
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Granted: 1963-12-03
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Expires: 1980-08-15
Abstract
No abstract record available.
Inventors
- 👤 Hase Alfred Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:34
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38
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) | 1966-12-02 | 1967-06-03 | 1967-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-02 | 1971-06-03 | 1971-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-02 | 1975-06-03 | 1975-12-03 | $7700.00 | Window Closed / Lapsed |