Method of producing allyletherester monomers for production of cement dispersants
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
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Apr 19, 2005
Grant Date -
Jul 10, 2003
app pub date -
Jun 13, 2002
filing date -
Oct 16, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Allyletherester monomers to be used as an intermediate product for the production of graft copolymers and/or their salts for use as cement dispersants are prepared by an esterification reaction of .alpha.-allyl-.omega.-hydroxy-polyoxyalkylene refined so as to have peroxide value less than 5.0 meq/kg and aliphatic monocaboxylic acid under a specified condition in the absence of solvent and in the presence of an antioxidant.
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 | |
---|---|---|
TAKEMOTO YUSHI KABUSHIKI KAISHA | 2-5 MINATO-MACHI GAMAGORI-SHI AICHI-KEN 443-8611 |
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
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Kinoshita, Mitsuo | Aichi, JP | 59 | 523 |
# of filed Patents : 59 Total Citations : 523 | |||
Tamaki, Shinji | Aichi, JP | 75 | 942 |
# of filed Patents : 75 Total Citations : 942 |
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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 |
---|---|---|---|
Nov 08, 2010 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Oct 13, 2010 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Oct 13, 2010 |
Oct 13, 2010 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | |
May 17, 2010 | REMI | MAINTENANCE FEE REMINDER MAILED | |
Mar 17, 2006 | FPAY | FEE PAYMENT | year of fee payment: 8 |
Mar 21, 2002 | FPAY | FEE PAYMENT | year of fee payment: 4 |
Dec 13, 1999 | AS | ASSIGNMENT | free format text: CHANGE OF CORPORATE ADDRESS;ASSIGNOR:ASAHI GLASS COMPANY LTD.;REEL/FRAME:010557/0067 Owner name: ASAHI GLASS COMPANY LTD., JAPAN Effective Date: Dec 13, 1999 |
Jan 04, 1999 | AS | ASSIGNMENT | free format text: CHANGE OF NAME;ASSIGNOR:IWAKI GLASS COMPANY LTD.;REEL/FRAME:011204/0377 Owner name: ASAHI TECHNO GLASS CORPORATION, JAPAN Effective Date: Jan 04, 1999 |
Dec 01, 1998 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 13, 1998 | I | Issuance | |
Apr 18, 1997 | F | Filing | |
Aug 22, 1995 | PD | Priority Date |

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