US2586171A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit interrupting means
Assignee: S&C Electric Co
•
Filing: 1947-05-01
•
Granted: 1952-02-19
•
Expires: 1967-05-01
Abstract
No abstract record available.
Inventors
- 👤 George F Mcmahon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 23:13
CPC Classifications
H; H01; H01H; H01H85/00; H01H85/02; H01H85/38; H01H85/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB190307790A
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GB399896A
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US2253719A
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US2279630A
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US2253720A
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US2304250A
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US2325416A
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US2328825A
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US2325935A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-18 | 1955-08-20 | 1956-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-18 | 1959-08-20 | 1960-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-18 | 1963-08-20 | 1964-02-19 | $7700.00 | Window Closed / Lapsed |