US2159059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric welding
Assignee: Babcock and Wilcox Co
•
Filing: 1936-12-28
•
Granted: 1939-05-23
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Expires: 1956-12-28
Abstract
No abstract record available.
Inventors
- 👤 James E Trainer
- 👤 Ziegler Crawford
- 👤 Clarence H Yeo
- 👤 William S Jordre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:28
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/04; B; B23; B23K; B23K11/00; B23K11/002; B23K11/004; B23K11/0046; B23K11/0053
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-05-22 | 1942-11-21 | 1943-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-05-22 | 1946-11-21 | 1947-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-05-22 | 1950-11-21 | 1951-05-23 | $7700.00 | Window Closed / Lapsed |