US2864015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elimination of cooling liquid drag in eddy current devices
Assignee: Eaton Corp
•
Filing: 1956-01-24
•
Granted: 1958-12-09
•
Expires: 1976-01-24
Abstract
No abstract record available.
Inventors
- 👤 William F King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:40
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)
US2119819A
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FR895448A
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US2419837A
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US2448381A
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US2417686A
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US2473259A
Cited
US2521535A
Cited
US2724064A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |