US3240593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion resistant magnesium alloys having a grain-refined structure
Assignee: Knapsack AG
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Filing: 1962-06-01
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Granted: 1966-03-15
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Expires: 1982-06-01
Abstract
No abstract record available.
Inventors
- 👤 Schneider Armin
- 👤 Strauss Georg
- 👤 Stendel Joachim
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:58
CPC Classifications
C; C22; C22C; C22C24/00; C22C23/00; C22C25/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A MAGNESIUM BASE ALLOY HAVING AN IMPROVED GRAINREFINED CAST STRUCTURE, IMPROVED STRENGTH PROPERTIES AND AN IMPROVED CORROSION RESISTANCE, SAID ALLOY CONSISTING ESSENTIALLY OF A SILICIDE OF THE GENERAL FORMULA ME5SI3 WHEREIN ME IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, CHROMIUM AND MANGANESE, AND THE BALANCE MAGNESIUM, THE CONCENTRATIONS OF THE SILICON AND THE METAL ME IN THE ALLOYS CORRESPONDING AT LEAST TO THE CONCENTRATIONS OF THE SOLUBILITY PRODUCTS OF THE ME5SI3 WITHIN THE RANGE OF EXISTENCE OF SAID ME5SI3 AT THE CASTING TEMPERATURE OF THE ALLOY MELT, AND THE SI-CONTENT OF THE ALLOY BEING SMALLER THAN THE PROPORTION OF SILICON REQUIRED FOR THE FORMATION OF MG2SI IN THE CAST ALLOY.
Claim 2
Dependent Claim
116 words
A MAGNESIUM BASE ALLOY HAVING AN IMPROVED GRAINREFINED CAST STRUCTURE, IMPROVED STRENGTH PROPERTIES AND AN IMPROVED CORROSION RESISTANCE, SAID ALLOY CONSISTING ESSENTIALLY OF A SILICIDE OF THE GENERAL FORMULA ME5SI3 WHEREIN ME IS A METAL SELECTED FROM THE GROUP CONSISTING OF TITANIUM, ZIRCONIUM, HAFNIUM, VANADIUM, CHROMIUM AND MANGANESE, AND THE BALANCE MAGNESIUM, THE CONCENTRATIONS OF THE SILICON AND THE METAL ME IN THE ALLOYS CORRESPONDING AT LEAST TO THE CONCENTRATIONS OF THE SOLUBILITY PRODUCTS OF THE ME5SI3 WITHIN THE RANGE OF EXISTENCE OF SAID ME5SI3 AT THE CASTING TEMPERATURE OF THE ALLOY MELT, AND THE SI-CONTENT OF THE ALLOY BEING SMALLER THAN THE PROPORTION OF SILICON REQUIRED FOR THE FORMATION OF MG2SI IN THE CAST ALLOY.
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) | 1969-03-14 | 1969-09-13 | 1970-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-14 | 1973-09-13 | 1974-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-14 | 1977-09-13 | 1978-03-15 | $7700.00 | Window Closed / Lapsed |