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Patent US2487258A successfully refreshed from Google Patents.
US2487258A
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Shaded pole motor
Assignee: Zenith Electronics LLC
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Filing: 1946-11-29
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Granted: 1949-11-08
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Expires: 1966-11-29
Abstract
No abstract record available.
Inventors
- 👤 George V Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 13:20
CPC Classifications
H; H02; H02K; H02K1/00; H02K1/06; H02K1/12; H02K1/14; H02K1/141; H02K1/143; H02K17/00; H02K17/02; H02K17/04; H02K17/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1534282A
Cited
US1576002A
Cited
FR582890A
Cited
US1992956A
Cited
US2049261A
Cited
US2108569A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |