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Extract from the Register of European Patents

EP About this file: EP0650931

EP0650931 - Method for preventing activated sludge from losing its settling ability [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  07.05.2004
Database last updated on 03.10.2024
Most recent event   Tooltip07.05.2004No opposition filed within time limitpublished on 23.06.2004  [2004/26]
Applicant(s)For all designated states
Kurita Water Industries Ltd.
4-7, Nishishinjuku 3-chome Shinjuku-ku
Tokyo / JP
[N/P]
Former [1995/18]For all designated states
KURITA WATER INDUSTRIES LTD.
4-7, Nishishinjuku 3-chome
Shinjuku-ku Tokyo / JP
Inventor(s)01 / Kitatsuji, Katsura, c/o Kurita Water Ind. Ltd.
4-7 Nishi-Shinjuku 3-chome
Shinjuku-ku, Tokyo / JP
02 / Chu, Kingo, c/o Kurita Water Industries Ltd.
4-7 Nishi-Shinjuku 3-chome
Shinjuku-ku, Tokyo / JP
03 / Fukase, Tetsuro, c/o Kurita Water Industries Ltd.
4-7 Nishi-Shinjuku 3-chome
Shinjuku-ku, Tokyo / JP
[1995/18]
Representative(s)Perry, Robert Edward
Gill Jennings & Every LLP The Broadgate Tower
20 Primrose Street
London
EC2A 2ES / GB
[N/P]
Former [1995/18]Perry, Robert Edward
GILL JENNINGS & EVERY Broadgate House 7 Eldon Street
London EC2M 7LH / GB
Application number, filing date94307682.819.10.1994
[1995/18]
Priority number, dateJP1993026522822.10.1993         Original published format: JP 26522893
[1995/18]
Filing languageEN
Procedural languageEN
PublicationType: A2 Application without search report 
No.:EP0650931
Date:03.05.1995
Language:EN
[1995/18]
Type: A3 Search report 
No.:EP0650931
Date:05.02.1997
[1997/06]
Type: B1 Patent specification 
No.:EP0650931
Date:02.07.2003
Language:EN
[2003/27]
Search report(s)(Supplementary) European search report - dispatched on:EP23.12.1996
ClassificationIPC:C02F3/12, C02F1/54
[1995/18]
CPC:
C02F3/12 (EP,US); C02F1/54 (EP,US); Y02W10/10 (EP,US)
Designated contracting statesDE,   DK,   FR,   GB,   NL [1995/18]
TitleGerman:Verfahren zum Schutz von Belebtschlamm vor Verlust seiner Absetzfähigkeit[1995/18]
English:Method for preventing activated sludge from losing its settling ability[1995/18]
French:Méthode pour éviter à une boue activée de pendre sa capacité de sedimentation[1995/18]
Examination procedure25.07.1997Examination requested  [1997/39]
16.09.1999Despatch of a communication from the examining division (Time limit: M06)
20.04.2000Despatch of communication that the application is deemed to be withdrawn, reason: reply to the communication from the examining division not received in time
14.06.2000Reply to a communication from the examining division
27.06.2001Despatch of a communication from the examining division (Time limit: M04)
05.07.2001Reply to a communication from the examining division
06.12.2002Communication of intention to grant the patent
25.03.2003Fee for grant paid
25.03.2003Fee for publishing/printing paid
Opposition(s)05.04.2004No opposition filed within time limit [2004/26]
Request for further processing for:14.06.2000Request for further processing filed
12.06.2000Full payment received (date of receipt of payment)
Request granted
26.06.2000Decision despatched
Fees paidRenewal fee
09.10.1996Renewal fee patent year 03
10.10.1997Renewal fee patent year 04
12.10.1998Renewal fee patent year 05
14.10.1999Renewal fee patent year 06
11.10.2000Renewal fee patent year 07
11.10.2001Renewal fee patent year 08
15.10.2002Renewal fee patent year 09
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Documents cited:Search[A]US4732684  (FUJINO KIYOHARU [JP]) [A] 1-6 * column 2, line 31 - column 4, line 19 *;
 [A]WO9009966  (MITSUBISHI KASEI POLYTEC CO [JP]);
 [X]WO9014310  (COMMW SCIENT IND RES ORG [AU]) [X] 1-6 * page 3, line 31 - page 6, line 11; examples 1-10 *
The EPO accepts no responsibility for the accuracy of data originating from other authorities; in particular, it does not guarantee that it is complete, up to date or fit for specific purposes.