Patent US3337377A successfully refreshed from Google Patents.
US3337377A
Expired / Lapsed
US
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Process for the treatment of magnesium-silicon aluminum alloys
Assignee: Pechiney SA
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Filing: 1963-12-18
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Granted: 1967-08-22
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Expires: 1983-12-18
Abstract
No abstract record available.
Inventors
- 👤 Bonmarin Jacques
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:02
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; C22C21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
92 words
IN A PROCESS FOR THE TREATMENT OF ALUMINUM BASE ALLOYS INCLUDING THE STEPS OF SUBJECTING THE ALLOYS TO A SOLUTION HEAT TREATMENT, AND THEREAFTER AGING THE ALLOYS, SAID ALLOYS CONSISTING ESSENTIALLY OF FROM 0.2 TO 2.0 PERCENT BY WEIGHT MAGNESIUM AND FROM 0.2 TO 5.0 PERCENT BY WEIGHT SILICON, AND THE BALANCE ALUMINUM, SAID ALLOYS BEING SUBJECTED TO LOSSES IN MECHANICAL PROPERTIES DUE TO DELAYS BETWEEN SAID SOLUTION HEAT TREATMENT AND AGING, THE IMPROVEMENT IN COMBINATION THEREWITH INCLUDING TIN IN SAID ALLOYS IN AN AMOUNT BETWEEN 0.001 AND 0.1 PERCENT BY WEIGHT.
Claim 2
Dependent Claim
92 words
IN A PROCESS FOR THE TREATMENT OF ALUMINUM BASE ALLOYS INCLUDING THE STEPS OF SUBJECTING THE ALLOYS TO A SOLUTION HEAT TREATMENT, AND THEREAFTER AGING THE ALLOYS, SAID ALLOYS CONSISTING ESSENTIALLY OF FROM 0.2 TO 2.0 PERCENT BY WEIGHT MAGNESIUM AND FROM 0.2 TO 5.0 PERCENT BY WEIGHT SILICON, AND THE BALANCE ALUMINUM, SAID ALLOYS BEING SUBJECTED TO LOSSES IN MECHANICAL PROPERTIES DUE TO DELAYS BETWEEN SAID SOLUTION HEAT TREATMENT AND AGING, THE IMPROVEMENT IN COMBINATION THEREWITH INCLUDING TIN IN SAID ALLOYS IN AN AMOUNT BETWEEN 0.001 AND 0.1 PERCENT BY WEIGHT.
References Cited (Backward Citations)
US2081951A
Cited
US2076587A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-21 | 1971-02-20 | 1971-08-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-21 | 1975-02-20 | 1975-08-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-21 | 1979-02-20 | 1979-08-22 | $7700.00 | Window Closed / Lapsed |