US3204210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High reactance transformer
Assignee: Core Manufacturing Co
•
Filing: 1962-12-28
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Granted: 1965-08-31
•
Expires: 1982-12-28
Abstract
No abstract record available.
Inventors
- 👤 Clarence G Duenke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:56
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/08; H01F38/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49075; Y10T29/49078
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
73 words
A CORE FOR A HIGH REACTANCE TRANSFORMER COMPRISING TWO CORE LOOPS INCLUDING AN INNER AND AN OUTER CORE LOOP EACH COMPRISING A PLURALITY OF CONCENTRIC METAL STRIP LAMINATIONS, THE INNER CORE LOOP BEING POSITIONED WITHIN THE OUTER CORE LOOP AND HAVING A YOKE EXTENDING BETWEEN OPPOSITE LEGS OF THE OUTER CORE LOOP WITH AN AIR GAP THEREACROSS, THE LAMINATIONS OF THE OUTER CORE LOOP COMPRISING A PLURALITY OF SEPARATE GROUPS WITH THE LAMINATIONS
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-30 | 1969-03-01 | 1969-08-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-30 | 1973-03-01 | 1973-08-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-30 | 1977-03-01 | 1977-08-31 | $7700.00 | Window Closed / Lapsed |