US2951133A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hermetically sealed electromagnetic contactors and the like
Assignee: Cutler Hammer Inc
•
Filing: 1954-01-11
•
Granted: 1960-08-30
•
Expires: 1974-01-11
Abstract
No abstract record available.
Inventors
- 👤 James E Davies
- 👤 Charles W Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:22
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/02; H01H9/04; H01H51/00; H01H51/02; H01H51/04; H01H51/06; H01H51/065; H01H50/00; H01H50/02; H01H50/023; H01H2050/025; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/943
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1328450A
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US1353249A
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US1803908A
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US2173473A
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US2210699A
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US2292863A
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US2459193A
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US2467063A
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US2586892A
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US2577576A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-08-30 | 1964-02-29 | 1964-08-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-08-30 | 1968-02-29 | 1968-08-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-08-30 | 1972-02-29 | 1972-08-30 | $7700.00 | Window Closed / Lapsed |