US2809891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making articles from aluminous metal powder
Assignee: Alcoa Corp
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Filing: 1954-10-12
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Granted: 1957-10-15
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Expires: 1974-10-12
Abstract
No abstract record available.
Inventors
- 👤 William T Ennor
- 👤 Jr John P Lyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:12
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/12; B22F3/16
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
83 words
THE MOTHED OF MAKING A WROUGHT PRODUCT FROM ALUMINOUS METAL POWDER OF LESS THAN 35 MESH SIZE COMPRISING INTIALLY FORMING A PARTIALLY CONSOLIDATION COMPACT OF SAID POWDER BY COMPRESSING A LOOSE MASS OF SAID POWDER UNDER A PRESSURE OF LESS THAN 1,000LBS./SQ.IN. AT A TEMPERATURE BETWEEN 840*F. AND THE TEMPERATURE AT WHICH THE METAL BECOMES COMPLETELY MOLTEN UNTIL THE COMPRESSED MASS ATTAINS A DENSITY OF AT LEAST 30% OF THAT OF THE SOLID METAL, AND THEREAFTER WORKING SAID COMPACT INTO THE FINISHED SHAPED.
Claim 2
Dependent Claim
83 words
THE MOTHED OF MAKING A WROUGHT PRODUCT FROM ALUMINOUS METAL POWDER OF LESS THAN 35 MESH SIZE COMPRISING INTIALLY FORMING A PARTIALLY CONSOLIDATION COMPACT OF SAID POWDER BY COMPRESSING A LOOSE MASS OF SAID POWDER UNDER A PRESSURE OF LESS THAN 1,000LBS./SQ.IN. AT A TEMPERATURE BETWEEN 840*F. AND THE TEMPERATURE AT WHICH THE METAL BECOMES COMPLETELY MOLTEN UNTIL THE COMPRESSED MASS ATTAINS A DENSITY OF AT LEAST 30% OF THAT OF THE SOLID METAL, AND THEREAFTER WORKING SAID COMPACT INTO THE FINISHED SHAPED.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |