Patent US2914641A successfully refreshed from Google Patents.
US2914641A
Expired / Lapsed
US
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Welding dissimilar metal members
Assignee: Union Carbide Corp
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Filing: 1958-01-02
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Granted: 1959-11-24
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Expires: 1978-01-02
Abstract
No abstract record available.
Inventors
- 👤 Eugene V Yuhasz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:25
CPC Classifications
B; B23; B23K; B23K1/00; B23K1/002; H; H01; H01R; H01R4/00; H01R4/58; H01R4/62; H01R4/625; B23K2101/00; B23K2101/04; B23K2101/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-23 | 1963-05-25 | 1963-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-23 | 1967-05-25 | 1967-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-23 | 1971-05-25 | 1971-11-24 | $7700.00 | Window Closed / Lapsed |