US3264069A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Agglomerating alumina
Assignee: Alcoa Corp
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Filing: 1965-09-27
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Granted: 1966-08-02
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Robert J Getty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:31
CPC Classifications
C; C01; C01F; C01F7/00; C01F7/02; C01F7/021; C01F7/025; B; B01; B01J; B01J20/00; B01J20/02; B01J20/06; B01J20/08; C01P; C01P2004/00; C01P2004/30; C01P2004/32; C01P2004/51; C01P2004/60; C01P2004/61; C01P2006/00; C01P2006/80; C01P2006/82
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
82 words
THE PROCESS OF PRODUCING ALUMINA AGGLOMERATES COMPRISING TUMBLING A MASS OF FINELY DIVIDED ACTIVATED ALUMINA PARTICLES IN A ROTATING DRUM WHILE MIXING A BINDER THEREWITH, WHEREBY THE PARTICLES AGGLOMERATE INTO PELLETS, SAID ALUMINA HAVING A LOSS ON IGNITION OF BETWEEN 5-14%, BY WEIGHT, AND HAVING A PARTICLE SIZE DISTRIBUTION OF AT LEAST 88% LESS THAN 45 MICRONS IN MAXIMUM DIMENSION, 20-35% LESS THAN 5 MICRONS IN MAXIMUM DIMENSION AND A MEDIAN PARTICLE SIZE OF 8-17 MICRONS, AND THEREAFTER HEATING THE RESULTANT AGGLOMERATES.
Claim 2
Dependent Claim
82 words
THE PROCESS OF PRODUCING ALUMINA AGGLOMERATES COMPRISING TUMBLING A MASS OF FINELY DIVIDED ACTIVATED ALUMINA PARTICLES IN A ROTATING DRUM WHILE MIXING A BINDER THEREWITH, WHEREBY THE PARTICLES AGGLOMERATE INTO PELLETS, SAID ALUMINA HAVING A LOSS ON IGNITION OF BETWEEN 5-14%, BY WEIGHT, AND HAVING A PARTICLE SIZE DISTRIBUTION OF AT LEAST 88% LESS THAN 45 MICRONS IN MAXIMUM DIMENSION, 20-35% LESS THAN 5 MICRONS IN MAXIMUM DIMENSION AND A MEDIAN PARTICLE SIZE OF 8-17 MICRONS, AND THEREAFTER HEATING THE RESULTANT AGGLOMERATES.
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) | 1969-08-01 | 1970-01-31 | 1970-08-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-01 | 1974-01-31 | 1974-08-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-01 | 1978-01-31 | 1978-08-02 | $7700.00 | Window Closed / Lapsed |