US3368141A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer in combination with permanent magnet
Assignee: CARLOS SUBIETA GARRON
•
Filing: 1964-09-23
•
Granted: 1968-02-06
•
Expires: 1984-09-23
Abstract
No abstract record available.
Inventors
- 👤 Subieta-Garron Carlos
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:57
CPC Classifications
H; H01; H01F; H01F29/00; H01F29/14; H01F29/146
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2324634A
Cited
US2563899A
Cited
US2802170A
Cited
US2819444A
Cited
US2913639A
Cited
US2978631A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-02-05 | 1971-08-07 | 1972-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-02-05 | 1975-08-07 | 1976-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-02-05 | 1979-08-07 | 1980-02-06 | $7700.00 | Window Closed / Lapsed |