Patent US3004331A successfully refreshed from Google Patents.
US3004331A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloy powder product
Assignee: Alcoa Corp
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Filing: 1960-11-08
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Granted: 1961-10-17
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Expires: 1980-11-08
Abstract
No abstract record available.
Inventors
- 👤 Raymond J Towner
- 👤 Jr John P Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:31
CPC Classifications
C; C22; C22C; C22C1/00; C22C1/04; C22C1/0408; C22C1/0416; Y; Y10; Y10S; Y10S75/00; Y10S75/95
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
161 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS AN INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMAIZED POWDER OF AN ALUMINUM BASE ALLOY CONTAINING AT LEAST 70% BY WEIGHT OF ALUMINUM, 2.5 TO 12.5% BY WEIGHT OF MANGANESE AND FROM 2.5 TTO 7.5% BY WEIGHT OF COPPER AS THE ESSENTIAL COMPONENTS, THE AMOUNT OF MANGANESE ALWAYS BEING IN EXCESS OF THE COPPER CONTENT, AND THE TOTAL AMOUNT OF MAGANESE AND COPPER EXCEEDING THE TOTAL QUANTITY OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM OTHER THAN COPPER, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE ASWORKED CONDITION BY A TENSILE STRENGTH AT 600*F. AFTER A 100 HOUR EXPOSURE OF NOT LESS THAN 10,000 P.S.I. AND A YIELD STRENGTH OF NOT LESS THAN 9,000 P.S.I.
Claim 2
Dependent Claim
161 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS AN INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMAIZED POWDER OF AN ALUMINUM BASE ALLOY CONTAINING AT LEAST 70% BY WEIGHT OF ALUMINUM, 2.5 TO 12.5% BY WEIGHT OF MANGANESE AND FROM 2.5 TTO 7.5% BY WEIGHT OF COPPER AS THE ESSENTIAL COMPONENTS, THE AMOUNT OF MANGANESE ALWAYS BEING IN EXCESS OF THE COPPER CONTENT, AND THE TOTAL AMOUNT OF MAGANESE AND COPPER EXCEEDING THE TOTAL QUANTITY OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM OTHER THAN COPPER, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE ASWORKED CONDITION BY A TENSILE STRENGTH AT 600*F. AFTER A 100 HOUR EXPOSURE OF NOT LESS THAN 10,000 P.S.I. AND A YIELD STRENGTH OF NOT LESS THAN 9,000 P.S.I.
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) | 1964-10-16 | 1965-04-17 | 1965-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-16 | 1969-04-17 | 1969-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-16 | 1973-04-17 | 1973-10-17 | $7700.00 | Window Closed / Lapsed |