Patent US2683791A successfully refreshed from Google Patents.
US2683791A
Expired / Lapsed
US
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Wire arc welding method and device
Assignee: Individual
•
Filing: 1951-08-27
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Granted: 1954-07-13
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Expires: 1971-08-27
Abstract
No abstract record available.
Inventors
- 👤 Herbert E Ruehlemann
- 👤 Wolfgang A Menzel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:11
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2383382A
Cited
US2445863A
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US2473871A
Cited
US2468808A
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US2491479A
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US2572084A
Cited
US2510415A
Cited
US2510620A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-07-12 | 1958-01-11 | 1958-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-07-12 | 1962-01-11 | 1962-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-07-12 | 1966-01-11 | 1966-07-13 | $7700.00 | Window Closed / Lapsed |