US2970889A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of magnesium aluminosilicate for medical uses
Assignee: Fuji Chemical Industries Co Ltd
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Filing: 1957-03-14
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Granted: 1961-02-07
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Expires: 1977-03-14
Abstract
No abstract record available.
Inventors
- 👤 Ishino Seizo
- 👤 Osaka Matajiro
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:30
CPC Classifications
A; A61; A61K; A61K33/00; A61K33/06; A61K33/12; C; C01; C01B; C01B33/00; C01B33/20; C01B33/26
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
13 words
A PROCESS FOR THE MANUFACTURE OF A MAGNESIUM ALUMINOISILICATE HAVING THE APPROXIMATE FORMULA
References Cited (Backward Citations)
US1642880A
Cited
US1759919A
Cited
US2512053A
Cited
GB735353A
Cited
US2882244A
Cited
US2882243A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-02-07 | 1964-08-08 | 1965-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-02-07 | 1968-08-08 | 1969-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-02-07 | 1972-08-08 | 1973-02-07 | $7700.00 | Window Closed / Lapsed |