US3372358A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film transformers
Assignee: TDK Micronas GmbH
•
Filing: 1966-04-12
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Granted: 1968-03-05
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Expires: 1986-04-12
Abstract
No abstract record available.
Inventors
- 👤 James W Roy
- 👤 Andre Sunnen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 21:16
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2804; H01F17/00; H01F17/0006; H01F17/0033; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49069; Y10T29/49117; Y10T29/49124
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3180833A
Cited
US3115581A
Cited
US3160576A
Cited
US3185947A
Cited
US3169115A
Cited
US3252913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-05 | 1971-09-04 | 1972-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-05 | 1975-09-04 | 1976-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-05 | 1979-09-04 | 1980-03-05 | $7700.00 | Window Closed / Lapsed |