Patent US2483868A successfully refreshed from Google Patents.
US2483868A
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Method of preparing silica gel which involves atomizing sodium silicate into acid
Assignee: International Minerals and Chemical Corp
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Filing: 1945-08-01
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Granted: 1949-10-04
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Expires: 1965-08-01
Abstract
No abstract record available.
Inventors
- 👤 Archer James Robert
- 👤 Dunn Grover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:49
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/113; C01B33/12; C01B33/14; C01B33/152; C01B33/154
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1756625A
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US1748315A
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US1798766A
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US1755496A
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US1674558A
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US2302297A
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US2213211A
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US2356128A
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US2370200A
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US2323727A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-10-03 | 1953-04-04 | 1953-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-10-03 | 1957-04-04 | 1957-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-10-03 | 1961-04-04 | 1961-10-04 | $7700.00 | Window Closed / Lapsed |