US2452901A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electromagnetic induction apparatus
Assignee: General Electric Co
•
Filing: 1944-08-16
•
Granted: 1948-11-02
•
Expires: 1964-08-16
Abstract
No abstract record available.
Inventors
- 👤 Camilli Guglielmo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:06
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49002; Y10T29/4902; Y10T29/49073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US791021A
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US1102513A
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US1889552A
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US1873049A
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US1786853A
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US1830541A
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DE640832C
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US2284406A
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US2316558A
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US2331106A
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US2360835A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-11-02 | 1952-05-03 | 1952-11-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-11-02 | 1956-05-03 | 1956-11-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-11-02 | 1960-05-03 | 1960-11-02 | $7700.00 | Window Closed / Lapsed |