Patent US2569059A successfully refreshed from Google Patents.
US2569059A
Expired / Lapsed
US
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Welded rivet construction for electrical brushes and contacts
Assignee: Union Carbide Corp
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Filing: 1947-12-18
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Granted: 1951-09-25
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Expires: 1967-12-18
Abstract
No abstract record available.
Inventors
- 👤 Melvin O Huff
- 👤 Arthur W Seidler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:27
CPC Classifications
H; H01; H01R; H01R39/00; H01R39/02; H01R39/36; F; F16; F16B; F16B19/00; F16B19/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1210029A
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US1433687A
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US1585849A
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US1808549A
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US1785482A
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US2251326A
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US2454579A
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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) | 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 |