Patent US2521535A successfully refreshed from Google Patents.
US2521535A
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US
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Dynamoelectric machine with bearing cooling means
Assignee: General Electric Co
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Filing: 1948-06-15
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Granted: 1950-09-05
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Expires: 1968-06-15
Abstract
No abstract record available.
Inventors
- 👤 Phil S Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:13
CPC Classifications
H; H02; H02K; H02K49/00; H02K49/02; H02K49/04; H02K49/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1227880A
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US1269909A
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US2281971A
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US2352206A
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US2351963A
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US2440551A
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US2403421A
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US2453509A
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US2462451A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-04 | 1954-03-06 | 1954-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-04 | 1958-03-06 | 1958-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-04 | 1962-03-06 | 1962-09-05 | $7700.00 | Window Closed / Lapsed |