US3234054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing aluminum base alloy
Assignee: Olin Corp
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Filing: 1964-08-05
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Granted: 1966-02-08
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Expires: 1984-08-05
Abstract
No abstract record available.
Inventors
- 👤 Philip R Sperry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:36
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06; C22C21/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
74 words
THE PROCESS WHICH COMPRISES: (A) PROVIDING AN ALLUMINUM BASE ALLOY CONSISTING ESSSENTIALLY OF FROM 0.60 TO 0.90 PERCENT SILICON, FROM 0.40 TO 0.60 PERCENT MAGNESIUM AND THE BALANCE ALUMINUM, WHEREIN SAID SILICON AND MAGNESIUM ARE UNIFORMLY DISTRIBUTED THROUGHOUT SAID ALLOY AND ARE DISSOLVED THEREIN; (B) EXTRUDING SAID ALLOY AT A TEMPERATURE IN EXCESS OF 950*F.; AND (C) RAPIDLY COOLING SAID EXTRUDED ALLOYY TO A TEMPERATURE OF AT LEAST 350*F. IN AT MOST 4 MINUTES.
Claim 2
Dependent Claim
74 words
THE PROCESS WHICH COMPRISES: (A) PROVIDING AN ALLUMINUM BASE ALLOY CONSISTING ESSSENTIALLY OF FROM 0.60 TO 0.90 PERCENT SILICON, FROM 0.40 TO 0.60 PERCENT MAGNESIUM AND THE BALANCE ALUMINUM, WHEREIN SAID SILICON AND MAGNESIUM ARE UNIFORMLY DISTRIBUTED THROUGHOUT SAID ALLOY AND ARE DISSOLVED THEREIN; (B) EXTRUDING SAID ALLOY AT A TEMPERATURE IN EXCESS OF 950*F.; AND (C) RAPIDLY COOLING SAID EXTRUDED ALLOYY TO A TEMPERATURE OF AT LEAST 350*F. IN AT MOST 4 MINUTES.
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) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |