Patent US3059072A successfully refreshed from Google Patents.
US3059072A
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US
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Dust proof switch enclosure with switch and door interlock
Assignee: Schneider Electric USA Inc
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Filing: 1960-08-17
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Granted: 1962-10-16
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Expires: 1980-08-17
Abstract
No abstract record available.
Inventors
- 👤 Earl F Mekelburg
- 👤 Frey Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:28
CPC Classifications
H; H01; H01H; H01H9/00; H01H9/20; H01H9/22; H01H9/223; H02; H02B; H02B1/00; H02B1/26; H02B1/28; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20238
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1568042A
Cited
US1893829A
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US2191523A
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US2412494A
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US2759054A
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US2946865A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-15 | 1966-04-16 | 1966-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-15 | 1970-04-16 | 1970-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-15 | 1974-04-16 | 1974-10-16 | $7700.00 | Window Closed / Lapsed |