US2564044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum-magnesium casting alloys
Assignee: WILLIAM F JOBBINS Inc
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Filing: 1949-01-14
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Granted: 1951-08-14
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Expires: 1969-01-14
Abstract
No abstract record available.
Inventors
- 👤 Charles B Willmore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 11:44
CPC Classifications
C; C22; C22C; C22C21/00; C22C21/06
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
109 words
AN ALUMINUM BASE CASTING ALLOY CONSISTING ESSENTIALLY OF 3 TO 9 PERCENT BY WEIGHT MAGNESIUM, FROM 0.001 TO LESS THAN 0.01 PERCENT BY WEIGHT BORON, FROM 0.01 TO 0.25 PERCENT BY WEIGHT TITANIUM, FROM 0.001 TO 0.2 PERCENT BY WEIGHT BERYLLIU, FROM 0.15 TO 1.5 PERCENT BY WEIGHT MANGANESE, AND LESS THAN 0.45 PERCENT BY WEIGHT IMPURITIES INCLUDING A MAXIMUM OF 0.25 PERCENT BY WEIGHT OF ANY OF THE METALS SELECTED FROM THE GROUP CONSISTING OF COPPER, SILICON AND IRON, AND A MAXIMUM OF 0.001 PERCENT BY WEIGHT OF ANY OF THE METALS SELECTED FROM THE GROUP CONSISTING OF ALKALI METALS AND ALKALINE EARTH METALS, THE BALANCE BEING ALUMINUM.
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) | 1954-08-13 | 1955-02-12 | 1955-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-13 | 1959-02-12 | 1959-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-13 | 1963-02-12 | 1963-08-14 | $7700.00 | Window Closed / Lapsed |