Patent US2897343A successfully refreshed from Google Patents.
US2897343A
Expired / Lapsed
US
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Method and apparatus for automatic arc welding with a fusible electrode
Assignee: Air Liquide SA
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Filing: 1956-10-04
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Granted: 1959-07-28
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Expires: 1976-10-04
Abstract
No abstract record available.
Inventors
- 👤 Regnauld Pierre
- 👤 Bogatenkoff Boris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:02
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/10; B23K9/1006; B23K9/1012; B23K9/1037
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) | 1962-07-27 | 1963-01-26 | 1963-07-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-27 | 1967-01-26 | 1967-07-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-27 | 1971-01-26 | 1971-07-28 | $7700.00 | Window Closed / Lapsed |