US2654583A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air-cooled transformer
Assignee: General Electric Co
•
Filing: 1949-10-12
•
Granted: 1953-10-06
•
Expires: 1969-10-12
Abstract
No abstract record available.
Inventors
- 👤 Edward D Treanor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:51
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/08; H01F27/085
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1083945A
Cited
GB374828A
Cited
US1826750A
Cited
GB488980A
Cited
CH246358A
Cited
US2362044A
Cited
US2347989A
Cited
US2445582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-10-05 | 1957-04-06 | 1957-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-10-05 | 1961-04-06 | 1961-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-10-05 | 1965-04-06 | 1965-10-06 | $7700.00 | Window Closed / Lapsed |