US2696583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Saturable reactor using permanent magnets
Assignee: Individual
•
Filing: 1949-08-17
•
Granted: 1954-12-07
•
Expires: 1969-08-17
Abstract
No abstract record available.
Inventors
- 👤 Walter J Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:37
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1788152A
Cited
US2053154A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-06 | 1958-06-07 | 1958-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-06 | 1962-06-07 | 1962-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-06 | 1966-06-07 | 1966-12-07 | $7700.00 | Window Closed / Lapsed |