US2486613A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Two-armature selectively retarded electromagnet
Assignee: ITE Circuit Breaker Co
•
Filing: 1945-10-19
•
Granted: 1949-11-01
•
Expires: 1965-10-19
Abstract
No abstract record available.
Inventors
- 👤 Cornelius J Ridgley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:01
CPC Classifications
H; H01; H01H; H01H71/00; H01H71/10; H01H71/12; H01H71/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US863185A
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US1123288A
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US1154359A
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US1696611A
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US1800256A
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US1764382A
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US1810591A
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US1840518A
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US2340973A
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US2393736A
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US2439165A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-31 | 1953-05-02 | 1953-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-31 | 1957-05-02 | 1957-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-31 | 1961-05-02 | 1961-11-01 | $7700.00 | Window Closed / Lapsed |