Patent US2571684A successfully refreshed from Google Patents.
US2571684A
Expired / Lapsed
US
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Gas shielded arc welding torch
Assignee: General Electric Co
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Filing: 1949-12-31
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Granted: 1951-10-16
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Expires: 1969-12-31
Abstract
No abstract record available.
Inventors
- 👤 Kenneth C Craven
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:35
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/295; B23K9/12; B23K9/133; B23K9/1336
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1508701A
Cited
FR765628A
Cited
US2121693A
Cited
US2093881A
Cited
GB468130A
Cited
US2122194A
Cited
US2280879A
Cited
US2405542A
Cited
US2360160A
Cited
US2438344A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-15 | 1955-04-16 | 1955-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-15 | 1959-04-16 | 1959-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-15 | 1963-04-16 | 1963-10-16 | $7700.00 | Window Closed / Lapsed |