US2666832A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combined welding head and flux hopper for continuous welding
Assignee: Lincoln Electric Co
•
Filing: 1949-10-22
•
Granted: 1954-01-19
•
Expires: 1969-10-22
Abstract
No abstract record available.
Inventors
- 👤 George G Landis
- 👤 Norman J Hoenie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:44
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/133; B23K9/1336
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1707433A
Cited
US1953915A
Cited
GB394773A
Cited
US2336732A
Cited
US2375656A
Cited
US2478525A
Cited
US2510204A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-18 | 1957-07-20 | 1958-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-18 | 1961-07-20 | 1962-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-18 | 1965-07-20 | 1966-01-19 | $7700.00 | Window Closed / Lapsed |