Patent US2936481A successfully refreshed from Google Patents.
US2799658A
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Colloidal silica compositions
Assignee: Monsanto Chemicals Ltd
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Filing: 1952-05-02
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Granted: 1957-07-16
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Expires: 1972-05-02
Abstract
No abstract record available.
Inventors
- 👤 Ralph F Nickerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:57
CPC Classifications
C; C09; C09D; C09D17/00; C09D17/004; C09D17/007; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/141; C01B33/1415; C01B33/146; C01B33/18; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; C01P2006/00; C01P2006/60; C01P2006/80
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A HOMOGENEOUS COMPOSITION OF MATTER CONSISTING SUBSTANTIALLY OF A STABLE, ALKALINE, AQUEOUS DISPERSION OF GELATIN AND A STABLE, ALKALINE SILICA AQUASOL CONTAINING UP TO 35% BY WEIGHT OF COLLOIDAL SILICA, SAID COLLOIDAL SILICA AND GELATIN BEING PRESENT IN A WEIGHT RATIO BETWEEN ABOUT 8:1.5 AND 8:3.
Claim 2
Dependent Claim
46 words
A HOMOGENEOUS COMPOSITION OF MATTER CONSISTING SUBSTANTIALLY OF A STABLE, ALKALINE, AQUEOUS DISPERSION OF GELATIN AND A STABLE, ALKALINE SILICA AQUASOL CONTAINING UP TO 35% BY WEIGHT OF COLLOIDAL SILICA, SAID COLLOIDAL SILICA AND GELATIN BEING PRESENT IN A WEIGHT RATIO BETWEEN ABOUT 8:1.5 AND 8:3.
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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) | 1960-07-15 | 1961-01-14 | 1961-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-15 | 1965-01-14 | 1965-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-15 | 1969-01-14 | 1969-07-16 | $7700.00 | Window Closed / Lapsed |