Patent US2522482A successfully refreshed from Google Patents.
US2522482A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric arc welding
Assignee: Babcock and Wilcox Tube Co
•
Filing: 1947-10-17
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Granted: 1950-09-12
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Expires: 1967-10-17
Abstract
No abstract record available.
Inventors
- 👤 Olzak Zigmont Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:11
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/167
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US903826A
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US1746207A
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US1707433A
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US1866044A
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US2053417A
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US2274631A
Cited
US2314628A
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US2342086A
Cited
US2376265A
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US2468808A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |