US2966736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum base alloy powder product
Assignee: Alcoa Corp
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Filing: 1958-03-27
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Granted: 1961-01-03
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Expires: 1978-03-27
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
2026-10-23 16:23
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
130 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMIZED POWDER OF ALUMINUM BASE ALLOY CONTAINING AT LEAST 70% BY WEIGHT OF ALUMINUM AND FROM 3.5 TO 15% BY WEIGHT OF ZIRCONIUM AS THE ESSENTIAL COMPONENT, THE AMOUNT OF SAID COMPONENT EXCEEDING THE TOTAL OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE AS-WORKED CONDITION BY TENSILE STRENGTH AT 600*F. AFTER A 100 HOUR EXPOSURE OF NOT LESS THAN 10,000 P.S.I. AND YIELD STRENGTH NOT LESS THAN 9,000 P.S.I.
Claim 2
Dependent Claim
130 words
A HOT WORKED ALUMINUM BASE ALLOY POWDER ARTICLE FREE FROM ALUMINUM OXIDE EXCEPT AS INCIDENTAL IMPURITY AND HAVING A MAXIMUM IRON CONTENT OF 1%, SAID HOT WORKED ALLOY POWDER ARTICLE BEING FORMED FROM ATOMIZED POWDER OF ALUMINUM BASE ALLOY CONTAINING AT LEAST 70% BY WEIGHT OF ALUMINUM AND FROM 3.5 TO 15% BY WEIGHT OF ZIRCONIUM AS THE ESSENTIAL COMPONENT, THE AMOUNT OF SAID COMPONENT EXCEEDING THE TOTAL OF ANY HARDENING ELEMENTS PRESENT IN THE ALLOY, SAID ALLOY BEING SUBSTANTIALLY FREE FROM ELEMENTS WHICH FORM A SOLID SOLUTION WITH ALUMINUM, EXCEPT AS THEY OCCUR AS IMPURITIES, SAID HOT WORKED ARTICLE BEING CHARACTERIZED IN THE AS-WORKED CONDITION BY TENSILE STRENGTH AT 600*F. AFTER A 100 HOUR EXPOSURE OF NOT LESS THAN 10,000 P.S.I. AND YIELD STRENGTH 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) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |