Patent US2937254A successfully refreshed from Google Patents.
US2937254A
Expired / Lapsed
US
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Panelboard unit
Assignee: General Electric Co
•
Filing: 1957-02-05
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Granted: 1960-05-17
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Expires: 1977-02-05
Abstract
No abstract record available.
Inventors
- 👤 Eric A Ericson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:19
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/26; H02B1/30; H02B1/32; H01; H01H; H01H1/00; H01H1/12; H01H1/14; H01H1/18; H01H3/00; H01H3/001; H01H71/00; H01H71/02; H01H71/0264; H01H71/10; H01H71/1009; H01H9/00; H01H9/10; H01H9/20; H01H9/22; H02B1/20; H02B1/21; H02B1/18
Claims Analysis
Total Claims: 0
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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) | 1963-05-17 | 1963-11-16 | 1964-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-05-17 | 1967-11-16 | 1968-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-05-17 | 1971-11-16 | 1972-05-17 | $7700.00 | Window Closed / Lapsed |