US3567480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment or filler and materials and procedures for making the same
Assignee: Vanderbilt Chemicals LLC
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Filing: 1969-06-11
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Granted: 1971-03-02
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Expires: 1989-06-11
Abstract
Abstract A COMPLEX COMPOSITION CONSISTING ESSENTIALLY OF TIO2, SIO2 AND CAO MADE BY PRECIPITATION FROM AN ACID SOLUTION OF TITANYL SULFATE CONTAINING CALCIUM AND SILICATE IONS DISSOLVED THEREIN, BY MIXING SUCH SOLUTION WITH AN ALKALINE SOLUTION UNDER CONDITIONS OF HIGH SHEAR.
Inventors
- 👤 William L Craig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 08:47
CPC Classifications
C; C09; C09C; C09C1/00; C09C1/0081; C09C1/0084; C01; C01P; C01P2002/00; C01P2002/70; C01P2002/72; C01P2004/00; C01P2004/60; C01P2004/62; C01P2006/00; C01P2006/60
Claims Analysis
Total Claims: 0
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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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |