US2965524A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric metal-arc welding flux
Assignee: Union Carbide Corp
•
Filing: 1956-10-09
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Granted: 1960-12-20
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Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Gerard E Claussen
- 👤 Swan David
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:24
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3602
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A POWDERED, MAGNETIC, SELF-SLAGGING FLUX COMPOSITION FOR METAL ARE WELDING CONSISTING ESSENTIALLY OF A BONDED MIXTURE OF (1) BETWEEN ABOUT 47 PERCENT AND ABOUT 73 PERCENT OF A MAGNETIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF MAGNETITE, MANGANESE FERRITE, THE FERRITE-CONTAINING OXIDE MN3O4.FE3O4, COPPER FERRITE AND MAGNESIUM FERRITE, SAID MAGNETIC MATERIAL BEING THE SOLE OXIDIZING COMPONENT OF SAID FLUX, (2) A REDUCING AGENT FOR SAID MAGNETIC MATERIAL, SAID REDUCING AGENT BEING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF FERROSILICON FERROTITANIUM, SILICOMANGANESE, MANGANESE, TITANIUM, SILICON, ZIRCONIUM AND ALUMINUM AND BEING PRESENT
Claim 2
Dependent Claim
93 words
A POWDERED, MAGNETIC, SELF-SLAGGING FLUX COMPOSITION FOR METAL ARE WELDING CONSISTING ESSENTIALLY OF A BONDED MIXTURE OF (1) BETWEEN ABOUT 47 PERCENT AND ABOUT 73 PERCENT OF A MAGNETIC MATERIAL SELECTED FROM THE CLASS CONSISTING OF MAGNETITE, MANGANESE FERRITE, THE FERRITE-CONTAINING OXIDE MN3O4.FE3O4, COPPER FERRITE AND MAGNESIUM FERRITE, SAID MAGNETIC MATERIAL BEING THE SOLE OXIDIZING COMPONENT OF SAID FLUX, (2) A REDUCING AGENT FOR SAID MAGNETIC MATERIAL, SAID REDUCING AGENT BEING AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF FERROSILICON FERROTITANIUM, SILICOMANGANESE, MANGANESE, TITANIUM, SILICON, ZIRCONIUM AND ALUMINUM AND BEING PRESENT
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |