US3466582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic yoke for shunt reactor
Assignee: Allis Chalmers Corp
•
Filing: 1967-07-28
•
Granted: 1969-09-09
•
Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 William C Sealey
- 👤 Michael W Waterman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 18:40
CPC Classifications
H; H01; H01F; H01F37/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US420396A
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US834160A
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US2710947A
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US2725502A
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US2892169A
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US3132318A
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US3195087A
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US3341793A
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US3362001A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-08 | 1973-03-10 | 1973-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-08 | 1977-03-10 | 1977-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-08 | 1981-03-10 | 1981-09-09 | $7700.00 | Window Closed / Lapsed |