US2946872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock and vibration resistant electromagnetic contactor
Assignee: Cutler Hammer Inc
•
Filing: 1957-12-19
•
Granted: 1960-07-26
•
Expires: 1977-12-19
Abstract
No abstract record available.
Inventors
- 👤 Robert W Siebers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 22:46
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/16; H01H50/18; H01H50/30; H01H50/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US916505A
Cited
US2082493A
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US1961058A
Cited
US2323113A
Cited
US2448772A
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US2564246A
Cited
US2727113A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |