Patent US2839634A successfully refreshed from Google Patents.
US2839634A
Expired / Lapsed
US
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Electric switch
Assignee: Johnson Electronics Inc
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Filing: 1956-01-30
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Granted: 1958-06-17
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Expires: 1976-01-30
Abstract
No abstract record available.
Inventors
- 👤 Joseph C Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 10:59
CPC Classifications
H; H01; H01H; H01H61/00; H01H61/06; H01H61/066; H01H37/00; H01H37/02; H01H37/32; H01H37/46; H01H37/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US921625A
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US2068374A
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US2321049A
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US2558219A
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US2387089A
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US2458518A
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US2505689A
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US2597759A
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US2747052A
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US2706757A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-16 | 1961-12-16 | 1962-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-16 | 1965-12-16 | 1966-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-16 | 1969-12-16 | 1970-06-17 | $7700.00 | Window Closed / Lapsed |