Cement dispersants comprising graft copolymers
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 17, 2005
Grant Date -
Apr 22, 2004
app pub date -
Oct 14, 2003
filing date -
Oct 16, 2001
priority date (Note) -
Expired
status (Latency Note)
![]() |
A preliminary load of PAIR data current through [] has been loaded. Any more recent PAIR data will be loaded within twenty-four hours. |
PAIR data current through []
A preliminary load of cached data will be loaded soon.
Any more recent PAIR data will be loaded within twenty-four hours.
![]() |
Next PAIR Update Scheduled on [ ] |

Importance

US Family Size
|
Non-US Coverage
|
Patent Longevity
|
Forward Citations
|
Abstract
Cement dispersants made of graft copolymers of a specified type and/or their salts are produced by using as an intermediate product allyletherester monomers prepared by an esterification reaction of α-allyl-ω-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
all claims..Other Claims data not available
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 |
---|---|---|---|
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 |
Cited Art Landscape
- No Cited Art to Display

Patent Citation Ranking
- 0 Citation Count
- C08F Class
- 0 % this patent is cited more than
- 20 Age
Forward Cite Landscape
- No Forward Cites to Display

Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
---|
Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
---|---|---|---|
Aug 02, 2021 | STCH | INFORMATION ON STATUS: PATENT DISCONTINUATION | free format text: PATENT EXPIRED DUE TO NONPAYMENT OF MAINTENANCE FEES UNDER 37 CFR 1.362 |
Aug 02, 2021 | LAPS | LAPSE FOR FAILURE TO PAY MAINTENANCE FEES | free format text: PATENT EXPIRED FOR FAILURE TO PAY MAINTENANCE FEES (ORIGINAL EVENT CODE: EXP.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jun 27, 2021 | FP | LAPSED DUE TO FAILURE TO PAY MAINTENANCE FEE | Effective Date: Jun 27, 2021 |
Feb 15, 2021 | FEPP | FEE PAYMENT PROCEDURE | free format text: MAINTENANCE FEE REMINDER MAILED (ORIGINAL EVENT CODE: REM.); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Jun 27, 2017 | I | Issuance | |
Jun 07, 2017 | STCF | INFORMATION ON STATUS: PATENT GRANT | free format text: PATENTED CASE |
Dec 05, 2016 | FEPP | FEE PAYMENT PROCEDURE | free format text: PAYOR NUMBER ASSIGNED (ORIGINAL EVENT CODE: ASPN); ENTITY STATUS OF PATENT OWNER: LARGE ENTITY |
Oct 08, 2015 | P | Published | |
May 29, 2015 | F | Filing | |
Mar 20, 2008 | AS | ASSIGNMENT | free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:NOKIA, INC.;REEL/FRAME:040362/0095 Owner name: NOKIA CORPORATION, FINLAND Effective Date: Jan 16, 2014 free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:BARRACLOUGH, KEITH;IRVINE, DAVID;REEL/FRAME:040362/0082 Owner name: NOKIA, INC., CALIFORNIA Effective Date: Mar 20, 2008 |

Matter Detail

Renewals Detail
