US2827580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamoelectric rotor with cooling fins
Assignee: Eaton Corp
•
Filing: 1952-09-03
•
Granted: 1958-03-18
•
Expires: 1972-09-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Jaeschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:13
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)
US1193897A
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FR385022A
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GB190819891A
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US1685677A
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DE434969C
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DE504351C
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GB528293A
Cited
US2215421A
Cited
US2357517A
Cited
US2428104A
Cited
US2452820A
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US2668922A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |