US3413494A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic amplifier control system
Assignee: Reliance Electric and Engineering Co
•
Filing: 1966-06-28
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Granted: 1968-11-26
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Expires: 1986-06-28
Abstract
No abstract record available.
Inventors
- 👤 Franklin O Wisman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:20
CPC Classifications
H; H02; H02P; H02P7/00; H02P7/06; H02P7/18; H02P7/30; H02P7/24; H02P7/28; H02P7/285; H02P7/292; H02P7/293; H03; H03F; H03F9/00; H03F9/04; Y; Y10; Y10S; Y10S388/00; Y10S388/907; Y10S388/913; Y10S388/917
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) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |