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US2938159A
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US
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Magnetic amplifiers
Assignee: General Electric Co
•
Filing: 1958-01-31
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Granted: 1960-05-24
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Expires: 1978-01-31
Abstract
No abstract record available.
Inventors
- 👤 Raymond E Morgan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:11
CPC Classifications
H; H03; H03F; H03F9/00; H03F9/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2729781A
Cited
US2832062A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-05-24 | 1963-11-23 | 1964-05-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-24 | 1967-11-23 | 1968-05-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-24 | 1971-11-23 | 1972-05-24 | $7700.00 | Window Closed / Lapsed |