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Extract from the Register of European Patents

EP About this file: EP0490681

EP0490681 - Additive composition for cement admixture [Right-click to bookmark this link]
StatusNo opposition filed within time limit
Status updated on  30.09.1995
Database last updated on 02.09.2024
Most recent event   Tooltip23.12.1999Lapse of the patent in a contracting state
New state(s): GR, LU		published on 09.02.2000 [2000/06]
Applicant(s)For all designated states
W.R. GRACE & CO.-CONN.
Grace Plaza, 1114 Avenue of the Americas
New York, NY 10036 / US
[N/P]
Former [1992/25]For all designated states
W.R. Grace & Co.-Conn.
Grace Plaza, 1114 Avenue of the Americas
New York, New York 10036 / US
Inventor(s)01 / Koyata, Hideo
2-105, Sun Stage Ryokuen Toshi, 4-2-1, Ryokuen
Izumi-ku, Yokohama-shi / JP
02 / Tsutsumi, Tomoyuki
285 Kasamacho, Sakae-ku
Yokohama-shi, Kanagawen-ken / JP
[1992/25]
Representative(s)Bentham, Stephen, et al
J A Kemp
14 South Square
Gray's Inn
London WC1R 5JJ / GB
[N/P]
Former [1992/25]Bentham, Stephen, et al
J.A. KEMP & CO. 14 South Square Gray's Inn
London WC1R 5LX / GB
Application number, filing date91311572.112.12.1991
[1992/25]
Priority number, dateJP1990040174912.12.1990         Original published format: JP 40174990
[1992/25]
Filing languageEN
Procedural languageEN
PublicationType: A1 Application with search report 
No.:EP0490681
Date:17.06.1992
Language:EN
[1992/25]
Type: B1 Patent specification 
No.:EP0490681
Date:30.11.1994
Language:EN
[1994/48]
Search report(s)(Supplementary) European search report - dispatched on:EP16.03.1992
ClassificationIPC:C04B28/02, C04B24/26, // (C04B28/02, 24:06, 24:18, 24:26)
[1992/25]
CPC:
C04B40/0039 (EP,US); C04B24/28 (KR); C04B24/04 (KR);
C04B24/2664 (EP,US); C04B28/02 (EP,US); C04B2103/40 (EP,US)
C-Set:
C04B28/02, C04B24/06, C04B24/18, C04B24/2664 (EP,US)
Designated contracting statesAT,   BE,   CH,   DE,   DK,   ES,   FR,   GB,   GR,   IT,   LI,   LU,   NL,   SE [1992/25]
TitleGerman:Zusatzmittel für Zementzusammensetzung[1992/25]
English:Additive composition for cement admixture[1992/25]
French:Additif pour mélange de ciment[1992/25]
Examination procedure04.12.1992Examination requested  [1993/05]
18.11.1993Despatch of communication of intention to grant (Approval: Yes)
26.05.1994Communication of intention to grant the patent
05.09.1994Fee for grant paid
05.09.1994Fee for publishing/printing paid
Opposition(s)31.08.1995No opposition filed within time limit [1995/47]
Fees paidRenewal fee
13.12.1993Renewal fee patent year 03
Opt-out from the exclusive  Tooltip
competence of the Unified
Patent Court		 See the Register of the Unified Patent Court for opt-out data
Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court.
Lapses during opposition  TooltipAT30.11.1994
BE30.11.1994
DK30.11.1994
GR30.11.1994
NL30.11.1994
LU31.12.1994
SE28.02.1995
[2000/05]
Former [1998/15]AT30.11.1994
BE30.11.1994
DK30.11.1994
NL30.11.1994
SE28.02.1995
Former [1996/03]AT30.11.1994
BE30.11.1994
NL30.11.1994
SE28.02.1995
Former [1995/41]AT30.11.1994
BE30.11.1994
NL30.11.1994
Former [1995/35]AT30.11.1994
NL30.11.1994
Former [1995/29]AT30.11.1994
Documents cited:Search[A]JP61205647  ;
 [A]EP0291073  (NIPPON OILS & FATS CO LTD [JP])
 [Y]  - CHEMICAL ABSTRACTS, vol. 102, no. 6, February 1985, Columbus, Ohio, US; abstract no. 50113J, page 270 ;
 [Y]  - CHEMICAL ABSTRACTS, vol. 106, no. 8, 23 February 1987, Columbus, Ohio, US; abstract no. 54900U, page 303 ;
 [A]  - CHEMICAL ABSTRACTS, vol. 109, no. 26, 26 December 1988, Columbus, Ohio, US; abstract no. 235926Q, page 315 ;
 [A]  - WORLD PATENTS INDEX LATEST Week 8643, Derwent Publications Ltd., London, GB; AN 86-281745 & JP-A-61 205 647 (NIPPON ZEON K.K.) 11 September 1986, & JP61205647 A 19860911
 [A]  - CHEMICAL ABSTRACTS, vol. 107, no. 12, September 1987, Columbus, Ohio, US; abstract no. 101703Q, page 323 ;
ExaminationJP59162163
 JP61205650
 JP63190747
 JP62091451
    - CHEMICAL ABSTRACTS, vol. 102, no. 6, February 1985, Columbus, Ohio, US; abstract no. 50113J, page 270 ; & JP-A-59162163, & JP59162163 A 00000000
    - CHEMICAL ABSTRACTS, vol. 106, no. 8, 23 February 1987, Columbus, Ohio, US; abstract no. 54900U, page 303 ; & JP-A-61205650, & JP61205650 A 19870223
    - CHEMICAL ABSTRACTS, vol. 109, no. 26, 26 December 1988, Columbus, Ohio, US; abstract no. 235926Q, page 315 ; & JP-A-63190747, & JP63190747 A 19881226
    - CHEMICAL ABSTRACTS, vol. 107, no. 12, September 1987, Columbus, Ohio, US; abstract no. 101703Q, page 323 ; & JP-A-62091451, & JP62091451 A 00000000
by applicantJPS54139929
 JPS6016851
 JPH01297411
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.