Patent US2921146A successfully refreshed from Google Patents.
US2921146A
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US
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Plug-in type power take-off device with bimetallic contacts
Assignee: General Electric Co
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Filing: 1957-12-02
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Granted: 1960-01-12
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Expires: 1977-12-02
Abstract
No abstract record available.
Inventors
- 👤 Eric A Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:34
CPC Classifications
H; H01; H01H; H01H1/00; H01H1/50; H01H1/504; H01R; H01R41/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1943958A
Cited
US2077587A
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US2128135A
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US2170298A
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US2361536A
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US2537866A
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US2740942A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |