US3796609A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding flux
Assignee: Lincoln Electric Co
•
Filing: 1971-11-01
•
Granted: 1974-03-12
•
Expires: 1991-11-01
Abstract
Abstract A WELDING FLUX WHICH COMBINES THE ADVANTAGE OF EXCELLENT SLAG REMOVAL IN MULTIPLE PASS DEEP GROVE WELDING AND IS "NEUTRAL" IN THAT THE WELD METAL ANALYSIS IS RELATIVELY UNAFFECTED BY CHANGES IN ARC VOLTAGE.
Inventors
- 👤 J Gonzales
- 👤 R Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:00
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/361; B23K35/362
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |