Patent US2874252A successfully refreshed from Google Patents.
US2874252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switch
Assignee: General Electric Co
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Filing: 1958-02-04
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Granted: 1959-02-17
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Expires: 1978-02-04
Abstract
No abstract record available.
Inventors
- 👤 Lyle J Wenzel
- 👤 Ernst R Wolff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:57
CPC Classifications
H; H01; H01H; H01H50/00; H01H50/54; H01H50/541; H01H50/545; H01H11/00; H01H11/0006; H01H11/0012; H01H15/00; H01H15/02; H01H15/06; H01H15/10; H01H15/102
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |