US3023301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Silica-free welding flux
Assignee: Union Carbide Corp
•
Filing: 1956-03-05
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Granted: 1962-02-27
•
Expires: 1976-03-05
Abstract
No abstract record available.
Inventors
- 👤 Gerard E Claussen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 20:08
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/362
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
A MAGNETIC SILICA-FREE FLUX POWDER FOR CONSUMABLEELECTRODE GAS-SHIELDED METAL ARC WELDING OF STEEL, WHICH IS COMPOSED OF 12-40% RUTILE, 1-10% FLUORIDE, 1-10% SILICON, 2-10% MANGANESE, AND 15-48% FERROMAGNETIC MATERIAL.
Claim 2
Dependent Claim
29 words
A MAGNETIC SILICA-FREE FLUX POWDER FOR CONSUMABLEELECTRODE GAS-SHIELDED METAL ARC WELDING OF STEEL, WHICH IS COMPOSED OF 12-40% RUTILE, 1-10% FLUORIDE, 1-10% SILICON, 2-10% MANGANESE, AND 15-48% FERROMAGNETIC MATERIAL.
References Cited (Backward Citations)
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US2518366A
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US2681875A
Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-02-26 | 1965-08-28 | 1966-02-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-26 | 1969-08-28 | 1970-02-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-26 | 1973-08-28 | 1974-02-27 | $7700.00 | Window Closed / Lapsed |