US3032394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for manufacture of magnesium alumino-silicate
Assignee: Fuji Chemical Industries Co Ltd
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Filing: 1960-12-06
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Granted: 1962-05-01
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Expires: 1980-12-06
Abstract
No abstract record available.
Inventors
- 👤 Ishino Seizo
- 👤 Osaka Matajiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:07
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/26; C01B33/36; C01B33/38; C01B33/40; C01B33/42; C01B33/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
81 words
A PROCESS OF PREPARING A MAGNESIUM ALUMINOSILICATE HAVING THE FORMULA 2MGO.AI2O3.SIO2 COMPRISING REACTING IN AN AQUEOUS MEDIUM TO FORM MONOBASIC MAGNESIUM ALUMINATE, EQUIMOLECULAR PROPORTIONS OF MONOBASIC SODIUM ALUMINATE AND A MAGNESIUM COMPOUND WHICH FURNISHES MAGNESIUM IONS IN SAID MEDIUM; WITHOUT DRYING SAID MAGNESIUM ALUMINATE, REACTING IT IN AN AQUEOUS MEDIUM WITH SODIUM SILICATE IN THE PROPORTION OF TWO MOLS OF THE MAGNESIUM ALUMINATE FOR EACH MOL OF THE SODIUM SILICATE; AND SEPARATING THE MAGNESIUM ALUMINOSILICATE SO FORMED FROM THE AQUEOUS MEDIUM.
Claim 2
Dependent Claim
81 words
A PROCESS OF PREPARING A MAGNESIUM ALUMINOSILICATE HAVING THE FORMULA 2MGO.AI2O3.SIO2 COMPRISING REACTING IN AN AQUEOUS MEDIUM TO FORM MONOBASIC MAGNESIUM ALUMINATE, EQUIMOLECULAR PROPORTIONS OF MONOBASIC SODIUM ALUMINATE AND A MAGNESIUM COMPOUND WHICH FURNISHES MAGNESIUM IONS IN SAID MEDIUM; WITHOUT DRYING SAID MAGNESIUM ALUMINATE, REACTING IT IN AN AQUEOUS MEDIUM WITH SODIUM SILICATE IN THE PROPORTION OF TWO MOLS OF THE MAGNESIUM ALUMINATE FOR EACH MOL OF THE SODIUM SILICATE; AND SEPARATING THE MAGNESIUM ALUMINOSILICATE SO FORMED FROM THE AQUEOUS MEDIUM.
References Cited (Backward Citations)
DE8505C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-30 | 1965-10-30 | 1966-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-30 | 1969-10-30 | 1970-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-30 | 1973-10-30 | 1974-05-01 | $7700.00 | Window Closed / Lapsed |