US2476121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Current transformer
Assignee: Daven Co
•
Filing: 1946-09-11
•
Granted: 1949-07-12
•
Expires: 1966-09-11
Abstract
No abstract record available.
Inventors
- 👤 Jr John P Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:18
CPC Classifications
H; H01; H01F; H01F38/00; H01F38/20; H01F38/22; H01F38/28; H01F38/30
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US826283A
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US854309A
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US1555066A
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US1765913A
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GB344575A
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US1935426A
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US2058362A
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US2175934A
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US2273534A
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US2350029A
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US2380300A
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US2403340A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-11 | 1953-01-10 | 1953-07-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-11 | 1957-01-10 | 1957-07-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-11 | 1961-01-10 | 1961-07-12 | $7700.00 | Window Closed / Lapsed |