US3260977A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus
Assignee: Westinghouse Electric Corp
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Filing: 1964-07-02
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Granted: 1966-07-12
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Expires: 1984-07-02
Abstract
No abstract record available.
Inventors
- 👤 John W Coltman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:13
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/2823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
66 words
AN ELECTRICAL TRANSFORMER COMPRISING A PRIMARY WINDING, A SECONDARY WINDING DISPOSED IN INDUCTIVE RELATION WITH SAID PRIMARY WINDING, MEANS FOR CONNECTING SAID PRIMARY AND SECONDARY WINDINGS TO INPUT AND OUTPUT CIRCUITS, TAPS DISPOSED ON SAID PRIMARY AND SECONDARY WINDINGS AT PREDETERMINED INTERVALS, MEANS CONNECTING SAID TAPS TO APPLY A VOLTAGE INDUCED IN ONE INTERVAL OF SAID SECONDARY WINDING TO THE SUCCEEDING INTERVAL OF SAID PRIMARY WINDING.
Claim 2
Dependent Claim
66 words
AN ELECTRICAL TRANSFORMER COMPRISING A PRIMARY WINDING, A SECONDARY WINDING DISPOSED IN INDUCTIVE RELATION WITH SAID PRIMARY WINDING, MEANS FOR CONNECTING SAID PRIMARY AND SECONDARY WINDINGS TO INPUT AND OUTPUT CIRCUITS, TAPS DISPOSED ON SAID PRIMARY AND SECONDARY WINDINGS AT PREDETERMINED INTERVALS, MEANS CONNECTING SAID TAPS TO APPLY A VOLTAGE INDUCED IN ONE INTERVAL OF SAID SECONDARY WINDING TO THE SUCCEEDING INTERVAL OF SAID PRIMARY 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) | 1969-07-11 | 1970-01-10 | 1970-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-07-11 | 1974-01-10 | 1974-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-07-11 | 1978-01-10 | 1978-07-12 | $7700.00 | Window Closed / Lapsed |