US3721843A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier assembly for brushless excitation systems
Assignee: Westinghouse Electric Corp
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Filing: 1972-03-06
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Granted: 1973-03-20
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Expires: 1992-03-06
Abstract
Abstract IN A BRUSHLESS EXCITATION SYSTEM RECTIFIER DIODES, HEAT SINKS, CAPACITORS, FUSES AND OTHER CIRCUIT COMPONENTS ARE ASSEMBLED IN A MODULAR ASSEMBLY AND A PLURALITY OF MODULES ARE MOUNTED ON SUPPORT WHEELS AND CONNECTED IN A RECTIFIER CIRCUIT TO FORM A ROTATING RECTIFIER ASSEMBLY.
Inventors
- 👤 A Spisak
- 👤 T Dillman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:07
CPC Classifications
H; H02; H02K; H02K11/00; H02K11/04; H02K11/042; H10; H10W; H10W90/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-03-19 | 1976-09-18 | 1977-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-03-19 | 1980-09-18 | 1981-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-03-19 | 1984-09-18 | 1985-03-20 | $7700.00 | Window Closed / Lapsed |