US2427749A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-voltage dynamoelectric machine winding
Assignee: Westinghouse Electric Corp
•
Filing: 1943-06-30
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Granted: 1947-09-23
•
Expires: 1963-06-30
Abstract
No abstract record available.
Inventors
- 👤 Earl L Schulman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 10:03
CPC Classifications
H; H02; H02K; H02K3/00; H02K3/32; H02K3/40
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US653468A
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US1784989A
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US2322702A
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US1987508A
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GB455193A
Cited
US2050357A
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US2042208A
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US2293677A
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US2344334A
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US2328894A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-22 | 1951-03-24 | 1951-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-22 | 1955-03-24 | 1955-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-22 | 1959-03-24 | 1959-09-23 | $7700.00 | Window Closed / Lapsed |