Synthetic platy magadiite and octasilicate
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Jun 20, 2006
Grant Date -
Aug 7, 2003
app pub date -
Apr 12, 2001
filing date -
Apr 14, 2000
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for producing synthetic magadiite, including the step of: heating a liquid aqueous colloidal silica suspension, the liquid aqueous colloidal silica suspension having a mole ratio of sodium hydroxide to silica and a mole ratio of water to silica effective to produce a synthetic magadiite wherein more than fifty percent by weight of the synthetic magadiite is platy synthetic magadiite. The synthetic platy magadiite can be converted to the acid form and: (a) heated to produce quartz-like plates; or (b) alkylated to produce an organophilic material. A method for the production of platy sodium octasilicate and a method for preparing a liquid aqueous colloidal silica dispersion having a mole ratio of silica to sodium oxide of 3.5 to 10 are further disclosed.
First Claim
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Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
THE DOW CHEMICAL COMPANY | 2030 DOW CENTER MIDLAND MI 48674 |
International Classification(s)

- 2001 Application Filing Year
- C01B Class
- 667 Applications Filed
- 263 Patents Issued To-Date
- 39.44 % Issued To-Date
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Garces, Juan M | Midland, MI | 33 | 489 |
# of filed Patents : 33 Total Citations : 489 | |||
Lakso, Steven R | Shepherd, MI | 7 | 234 |
# of filed Patents : 7 Total Citations : 234 |
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Patent Citation Ranking
- 0 Citation Count
- C01B Class
- 0 % this patent is cited more than
- 19 Age
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
Full Text

Legal Events
Date | Code | Event | Description |
---|---|---|---|
Jun 20, 2018 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 20, 2018 |
Jul 21, 2014 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Jun 20, 2014 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 20, 2014 |
Jun 20, 2014 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
Jan 31, 2014 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Jan 12, 2010 | SULP | SURCHARGE FOR LATE PAYMENT | |
Jan 12, 2010 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Jun 20, 2006 | I | Issuance | |
Jan 24, 2006 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:GARCES, JUAN M.;LAKSO, STEVE R.;SCHOEMAN, BRIAN J.;REEL/FRAME:017053/0635;SIGNING DATES FROM 20001113 TO 20001120 Owner name: THE DOW CHEMICAL COMPANY, MICHIGAN |
Aug 07, 2003 | P | Published | |
Apr 12, 2001 | F | Filing | |
Apr 14, 2000 | PD | Priority Date |

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