Patent US2797978A successfully refreshed from Google Patents.
US2797978A
Expired / Lapsed
US
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Aluminum and magnesium hydroxy carbonate
Assignee: Reheis Co Inc
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Filing: 1956-01-04
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Granted: 1957-07-02
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Expires: 1976-01-04
Abstract
No abstract record available.
Inventors
- 👤 Stewart M Beekman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:19
CPC Classifications
C; C01; C01F; C01F5/00; C01F5/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
IN MAKING ALUMINUM MAGNESIUM HYDROXY CARBONATE GEL OF HIGH RATE OF REACTIVITY WITH DILUTE ACID, THE PROCESS WHICH COMPRISES MIXING HYDROUS ALUMINUM HYDROXY CARBONATE GEL WITH PRECIPITATED MAGNESIUM CARBONATE IN AQUEOUS SUSPENSION IN PROPORTION TO PROVIDE 5-25 PARTS OF MAGNESIUM FOR 100 OF TOTAL WEIGHT OF MAGNESIUM AND ALUMINUM CALCULATED AS THE OXIDES, INTIMATELY BLENDING THE MIXED MATERIALS, AND THEN SUBJECTING THE BLENDED PRODUCT TO DRYING TO REMOVE WATER THEREFROM.
Claim 2
Dependent Claim
70 words
IN MAKING ALUMINUM MAGNESIUM HYDROXY CARBONATE GEL OF HIGH RATE OF REACTIVITY WITH DILUTE ACID, THE PROCESS WHICH COMPRISES MIXING HYDROUS ALUMINUM HYDROXY CARBONATE GEL WITH PRECIPITATED MAGNESIUM CARBONATE IN AQUEOUS SUSPENSION IN PROPORTION TO PROVIDE 5-25 PARTS OF MAGNESIUM FOR 100 OF TOTAL WEIGHT OF MAGNESIUM AND ALUMINUM CALCULATED AS THE OXIDES, INTIMATELY BLENDING THE MIXED MATERIALS, AND THEN SUBJECTING THE BLENDED PRODUCT TO DRYING TO REMOVE WATER THEREFROM.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |