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Patent US2569223A successfully refreshed from Google Patents.
US2569223A
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US
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Electrical connector block for bus ducts
Assignee: Individual
•
Filing: 1947-10-29
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Granted: 1951-09-25
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Expires: 1967-10-29
Abstract
No abstract record available.
Inventors
- 👤 Marsden E Bowers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:49
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/28; H01R4/30; H01R4/36
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1244099A
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US1148699A
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US1266440A
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US1995855A
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AT144604B
Cited
US2107915A
Cited
US2111939A
Cited
GB475946A
Cited
US2281515A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-24 | 1955-03-26 | 1955-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-24 | 1959-03-26 | 1959-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-24 | 1963-03-26 | 1963-09-25 | $7700.00 | Window Closed / Lapsed |