Patent US2630503A successfully refreshed from Google Patents.
US2630503A
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US
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Electric switch
Assignee: CENTRAL COMMERCIAL IND Inc
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Filing: 1951-03-05
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Granted: 1953-03-03
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Expires: 1971-03-05
Abstract
No abstract record available.
Inventors
- 👤 Merwin J Larsen
- 👤 Walter J Anderson
- 👤 Norman B Erickson
- 👤 Arthur F Evett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:21
CPC Classifications
G; G10; G10H; G10H1/00; G10H1/32; G10H1/34; G10H1/344; H; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/24; H01H1/242
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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |