US2497530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master alloy for introducing zirconium into magnesium
Assignee: Magnesium Elektron Ltd
•
Filing: 1946-03-08
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Granted: 1950-02-14
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Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Charles J P Ball
- 👤 Francis A Fox
- 👤 Jessup Alfred Claude
- 👤 Emley Edward Frederick
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:15
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/02; C22C1/03
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A MASTER ALLOY FOR INTRODUCING ZIRCONIUM INTO MAGNESIUM CONSISTING OF (1) A SALT PHASE IN QUANTITY NOT EXCEEDING 30% OF THE COMPOSITION AND CONSISTING OF AT LEAST TWO SALTS SELECTED FROM THE GROUP OF HALIDES CONSISTING OF THE HALIDES OF MAGNESIUM, LITHIUM, CALCIUM, BARIUM AND STRONTIUM, SAID SALT PHASE CONTAINING AT LEAST SOME MAGNESIUM FLUORIDE; (2) A MATRIX PHASE CONSISTING ESSENTIALLY OF AT LEAST ONE OF THE METALS SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ZINC, CADMIUM, CERIUM, SILVER, THALLIUM, THORIUM, COPPER, BISMUTH, BERYLLIUM, CALCIUM, AND LEAD; AND (3) METALLIC ZIRCONIUM PRODUCED BY REDUCTION OF ZIRCONIUM FLUORIDE BY MAGNESIUM IN THE PRESENCE OF THE SALT PHASE; THE MASTER ALLOY CONTAINING AT LEAST 3% OF METALLIC ZIRCONIUM AND BEING SUBSTANTIALLY FREE FROM ALUMINUM, MANGANESE, TIN, SILICON, COBALT, NICKEL, AND ANTIMONY.
Claim 2
Dependent Claim
129 words
A MASTER ALLOY FOR INTRODUCING ZIRCONIUM INTO MAGNESIUM CONSISTING OF (1) A SALT PHASE IN QUANTITY NOT EXCEEDING 30% OF THE COMPOSITION AND CONSISTING OF AT LEAST TWO SALTS SELECTED FROM THE GROUP OF HALIDES CONSISTING OF THE HALIDES OF MAGNESIUM, LITHIUM, CALCIUM, BARIUM AND STRONTIUM, SAID SALT PHASE CONTAINING AT LEAST SOME MAGNESIUM FLUORIDE; (2) A MATRIX PHASE CONSISTING ESSENTIALLY OF AT LEAST ONE OF THE METALS SELECTED FROM THE GROUP CONSISTING OF MAGNESIUM, ZINC, CADMIUM, CERIUM, SILVER, THALLIUM, THORIUM, COPPER, BISMUTH, BERYLLIUM, CALCIUM, AND LEAD; AND (3) METALLIC ZIRCONIUM PRODUCED BY REDUCTION OF ZIRCONIUM FLUORIDE BY MAGNESIUM IN THE PRESENCE OF THE SALT PHASE; THE MASTER ALLOY CONTAINING AT LEAST 3% OF METALLIC ZIRCONIUM AND BEING SUBSTANTIALLY FREE FROM ALUMINUM, MANGANESE, TIN, SILICON, COBALT, NICKEL, AND ANTIMONY.
References Cited (Backward Citations)
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Cited
FR686855A
Cited
GB489700A
Cited
US2250687A
Cited
US2228781A
Cited
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Cited
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Cited
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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) | 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 |