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Patent US2528154A successfully refreshed from Google Patents.
US2528154A
Expired / Lapsed
US
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Shrunk rotor for squirrel-cage motors
Assignee: Westinghouse Electric Corp
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Filing: 1947-03-13
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Granted: 1950-10-31
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Expires: 1967-03-13
Abstract
No abstract record available.
Inventors
- 👤 Leon R Ludwig
- 👤 William H Formhals
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:49
CPC Classifications
H; H02; H02K; H02K17/00; H02K17/02; H02K17/16; H02K15/00; H02K15/02; H02K15/021; H02K15/023; Y; Y10; Y10S; Y10S29/00; Y10S29/035; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/49009; Y10T29/49012; Y10T29/49826; Y10T29/49863; Y10T29/49865
Claims Analysis
Total Claims: 0
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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) | 1953-10-30 | 1954-05-01 | 1954-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-10-30 | 1958-05-01 | 1958-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-10-30 | 1962-05-01 | 1962-10-31 | $7700.00 | Window Closed / Lapsed |