Patent US3055996A successfully refreshed from Google Patents.
US3055996A
Expired / Lapsed
US
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Metalclad switchgear
Assignee: S&C Electric Co
•
Filing: 1959-10-12
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Granted: 1962-09-25
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Expires: 1979-10-12
Abstract
No abstract record available.
Inventors
- 👤 Emmett R Beebe
- 👤 Blokland Jan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 17:08
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/38; H01; H01H; H01H33/00; H01H33/02; H01H33/46; H01H33/48; H02B1/14; Y; Y10; Y10T; Y10T292/00; Y10T292/08; Y10T292/1039; Y10T292/1041
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1486960A
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US2020913A
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US2060903A
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US2595102A
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US2759054A
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US2851548A
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US2946865A
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US2989603A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-24 | 1966-03-26 | 1966-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-24 | 1970-03-26 | 1970-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-24 | 1974-03-26 | 1974-09-25 | $7700.00 | Window Closed / Lapsed |