Patent US3380820A successfully refreshed from Google Patents.
US3380820A
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Method of making high iron content aluminum alloys
Assignee: Motors Liquidation Co
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Filing: 1965-09-15
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Granted: 1968-04-30
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Expires: 1985-09-15
Abstract
No abstract record available.
Inventors
- 👤 Hetke Adolf
- 👤 Robert H Zimmerman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:56
CPC Classifications
C; C22; C22C; C22C21/00; C22C1/00; C22C1/02; C22C1/026; Y; Y10; Y10T; Y10T428/00; Y10T428/12; Y10T428/12486
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
97 words
A METHOD OF PREPARING AN ALUMINUM ALLOY OF HIGH IRON CONTENT WHEREIN SAID IRON CONTENT IS IN THE RANGE OF FROM 2% TO ABOUT 25% BY WEIGHT, SAID METHOD COMPRISED OF MIXING ALUMINUM AND FERROUS METAL PARTICLES HAVING A MAXIMUM DIMENSION OF LESS THAN ONE INCH IN ACCORDANCE WITH SAID IRON CONTENT TO ACHIEVE A UNIFORM MIXTURE, COMPRESSING SAID MIXTURE INTO A COMPOSITE BRIQUETTE HAVING AN ACTUAL DENSITY GREATER THAN 80% OF THE TRUE DENSITY OF AN IDEAL NONPOROUS MIXTURE OF ITS COMPONENTS, HEATING SAID BRIQUETTE UNTIL MELTED, AND CASTING SAID MOLTEN METAL INTO A DESIRED SHAPE.
Claim 2
Independent Claim
97 words
A METHOD OF PREPARING AN ALUMINUM ALLOY OF HIGH IRON CONTENT WHEREIN SAID IRON CONTENT IS IN THE RANGE OF FROM 2% TO ABOUT 25% BY WEIGHT, SAID METHOD COMPRISED OF MIXING ALUMINUM AND FERROUS METAL PARTICLES HAVING A MAXIMUM DIMENSION OF LESS THAN ONE INCH IN ACCORDANCE WITH SAID IRON CONTENT TO ACHIEVE A UNIFORM MIXTURE, COMPRESSING SAID MIXTURE INTO A COMPOSITE BRIQUETTE HAVING AN ACTUAL DENSITY GREATER THAN 80% OF THE TRUE DENSITY OF AN IDEAL NONPOROUS MIXTURE OF ITS COMPONENTS, HEATING SAID BRIQUETTE UNTIL MELTED, AND CASTING SAID MOLTEN METAL INTO A DESIRED SHAPE.
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) | 1971-04-30 | 1971-10-30 | 1972-04-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-04-30 | 1975-10-30 | 1976-04-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-04-30 | 1979-10-30 | 1980-04-30 | $7700.00 | Window Closed / Lapsed |