US3408554A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined magnetic regulator and transformer
Assignee: TDK Micronas GmbH
•
Filing: 1966-02-28
•
Granted: 1968-10-29
•
Expires: 1986-02-28
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Fingerett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:24
CPC Classifications
G; G05; G05F; G05F1/00; G05F1/10; G05F1/12; G05F1/32; G05F1/34; G05F1/38; G05B; G05B11/00; G05B11/01; G05B11/012; G05B11/016; G05F1/33
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1997657A
Cited
US2777986A
Cited
US2777073A
Cited
US2885627A
Cited
US3315151A
Cited
US3112440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |