Patent US3046152A successfully refreshed from Google Patents.
US3046152A
Expired / Lapsed
US
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Method of preparing colloidal calcium magnesium silicate
Assignee: Individual
•
Filing: 1958-11-25
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Granted: 1962-07-24
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Expires: 1978-11-25
Abstract
No abstract record available.
Inventors
- 👤 Shiraishi Tsuneyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 02:58
CPC Classifications
C; C01; C01B; C01B33/00; C01B33/20; C01B33/22; C01B33/24; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1918361A
Cited
US1945534A
Cited
US2257544A
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US2224520A
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US2287700A
Cited
US2742345A
Cited
US2888377A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-23 | 1966-01-22 | 1966-07-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-23 | 1970-01-22 | 1970-07-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-23 | 1974-01-22 | 1974-07-24 | $7700.00 | Window Closed / Lapsed |