Patent US2745908A successfully refreshed from Google Patents.
US2745908A
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Magnetic amplifier
Assignee: Unisys Corp
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Filing: 1951-01-10
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Granted: 1956-05-15
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Expires: 1971-01-10
Abstract
No abstract record available.
Inventors
- 👤 Sidney B Cohen
- 👤 Bentkowsky Jerome
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:08
CPC Classifications
G; G05; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; H; H01; H01F; H01F29/00; H01F29/14; H01F29/143; H03; H03F; H03F9/00; H03F9/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1544381A
Cited
US1914220A
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US2164383A
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US2432399A
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US2403891A
Cited
US2464639A
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US2509738A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-15 | 1959-11-14 | 1960-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-15 | 1963-11-14 | 1964-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-15 | 1967-11-14 | 1968-05-15 | $7700.00 | Window Closed / Lapsed |