Patent US3338359A successfully refreshed from Google Patents.
US2497540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluxes for the treatment of light alloys
Assignee: Magnesium Elektron Ltd
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Filing: 1947-08-26
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Granted: 1950-02-14
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Expires: 1967-08-26
Abstract
No abstract record available.
Inventors
- 👤 Emley Edward Frederick
- 👤 Junction Clifton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 14:31
CPC Classifications
C; C22; C22B; C22B9/00; C22B9/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
103 words
AN INSPISSATED FLUX SUITABLE FOR THE TREATMENT OF MAGNESIUM ALLOYS CONTAINING A RARE EARTH METAL, WHICH FLUX IS SUBSTANTIALLY FREE FROM MAGNESIUM CHLORIDE AND CONSISTS OF AT LEAST TWO CHLORIDES OF THE ALKALI METALS AND ALKALINE EARTH METALS, OTHER THAN MAGNESIUM, WHICH CHLORIDES WHEN IN MIXTURE ALONE HAVE A LIQUIDUS TEMPERATURE NOT GREATER THAN 610*C., THE BALANCE OF THE FLUX BEING A QUANTITY OF INSPISSATING AGENT SUCH AS TO PROVIDE A PASTY VISCOUS COVERING ON THE MOLTEN METAL, AND AT LEAST 75% OF THE INSPISSATING AGENT CONSISTING OF MAGNESIUM FLUORIDE, THE QUANTITY OF MAGNESIUM FLUORIDE BEING ABOUT 20% BY WEIGHT OF THE FLUX.
Claim 2
Dependent Claim
103 words
AN INSPISSATED FLUX SUITABLE FOR THE TREATMENT OF MAGNESIUM ALLOYS CONTAINING A RARE EARTH METAL, WHICH FLUX IS SUBSTANTIALLY FREE FROM MAGNESIUM CHLORIDE AND CONSISTS OF AT LEAST TWO CHLORIDES OF THE ALKALI METALS AND ALKALINE EARTH METALS, OTHER THAN MAGNESIUM, WHICH CHLORIDES WHEN IN MIXTURE ALONE HAVE A LIQUIDUS TEMPERATURE NOT GREATER THAN 610*C., THE BALANCE OF THE FLUX BEING A QUANTITY OF INSPISSATING AGENT SUCH AS TO PROVIDE A PASTY VISCOUS COVERING ON THE MOLTEN METAL, AND AT LEAST 75% OF THE INSPISSATING AGENT CONSISTING OF MAGNESIUM FLUORIDE, THE QUANTITY OF MAGNESIUM FLUORIDE BEING ABOUT 20% BY WEIGHT OF THE FLUX.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |