Patent US2567740A successfully refreshed from Google Patents.
US2567740A
Expired / Lapsed
US
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Channel bracing and intersecting wiring trough system for switchboards
Assignee: General Electric Co
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Filing: 1950-05-04
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Granted: 1951-09-11
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Expires: 1970-05-04
Abstract
No abstract record available.
Inventors
- 👤 Jr Walter L Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:15
CPC Classifications
H; H02; H02B; H02B1/00; H02B1/20; H02B1/202
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE20224E
Cited
US2006150A
Cited
US2051639A
Cited
US2140376A
Cited
US2363327A
Cited
US2467828A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-10 | 1955-03-12 | 1955-09-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-10 | 1959-03-12 | 1959-09-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-10 | 1963-03-12 | 1963-09-11 | $7700.00 | Window Closed / Lapsed |