US2783441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transformer
Assignee: General Electric Co
•
Filing: 1952-07-25
•
Granted: 1957-02-26
•
Expires: 1972-07-25
Abstract
No abstract record available.
Inventors
- 👤 Camilli Guglielmo
- 👤 George H Halsey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:55
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/28; H01F27/30; H01F27/306
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US772288A
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US717006A
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US834160A
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US873166A
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US974167A
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US1747953A
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US2201005A
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US2337916A
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DE734631C
Cited
US2279028A
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US2295371A
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US2388565A
Cited
US2422037A
Cited
US2527236A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-02-26 | 1960-08-27 | 1961-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-02-26 | 1964-08-27 | 1965-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-02-26 | 1968-08-27 | 1969-02-26 | $7700.00 | Window Closed / Lapsed |