Patent US2743339A successfully refreshed from Google Patents.
US2743339A
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US
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Electromagnetic contactor
Assignee: Westinghouse Electric Corp
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Filing: 1953-03-06
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Granted: 1956-04-24
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Expires: 1973-03-06
Abstract
No abstract record available.
Inventors
- 👤 Owen L Taylor
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:58
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/546
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2239031A
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US2276698A
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US2304972A
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US2360744A
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US2266618A
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US2538036A
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US2561991A
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US2532305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |