Patent US2685677A successfully refreshed from Google Patents.
US2685677A
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US
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Cooling system for electrical apparatus
Assignee: General Electric Co
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Filing: 1950-11-29
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Granted: 1954-08-03
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Expires: 1970-11-29
Abstract
No abstract record available.
Inventors
- 👤 Konstantin K Paluev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:50
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/32; H01F27/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1304257A
Cited
US1424259A
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US1523378A
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US2388565A
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US2388566A
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US2440556A
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US2459322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-08-02 | 1958-02-01 | 1958-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-02 | 1962-02-01 | 1962-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-02 | 1966-02-01 | 1966-08-03 | $7700.00 | Window Closed / Lapsed |