US3299384A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide-band transformer having neutralizing winding
Assignee: International Business Machines Corp
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Filing: 1964-07-01
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Granted: 1967-01-17
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Expires: 1984-07-01
Abstract
No abstract record available.
Inventors
- 👤 Lee Hua-Tung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:22
CPC Classifications
H; H01; H01F; H01F19/00; H01F27/00; H01F27/34; H01F27/36; H01F27/363
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
82 words
IN A TRANSFORMER, A MAGNETIC CIRCUIT ASSEMBLY COMPRISING: A FIRST WINDING HAVING TERMINAL MEANS, A NEUTRALIZING WINDING GEOMETRICALLY COEXTENSIVE WITH SAID FIRST WINDING, SAID NEUTRALIZING WINDING BEING WOUND OPPOSITELY WITH RESPECT TO SAID FIRST WINDING, ONE END OF SAID NEUTRALIZING WINDING BEING SUBSTANTIALLY OPEN CIRCUITED, AND SECOND WINDING MEANS SUBSTANTIALLY GEOMETRICALLY COEXTENSIVE WITH SAID FIRST AND NEUTRALIZING WINDINGS, WHEREBY SAID NEUTRALIZING WINDING IS OPERATIVE TO OFFSET IN ITS EFFECT ON SAID SECOND WINDING MEANS AN ELECTRIC POTENTIAL APPLIED TO SAID FIRST WINDING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |