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EP0621260
European procedure
Extract from the Register of European Patents
EP About this file: EP0621260
| EP0621260 - Process for producing N,N-disubstituted p-phenylenediamine derivative sulphate [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 12.12.1997 Database last updated on 28.03.2026 | Most recent event Tooltip | 12.12.1997 | No opposition filed within time limit | published on 28.01.1998 [1998/05] | Applicant(s) | For all designated states WAKO PURE CHEMICAL INDUSTRIES, LTD 1-2 Doshomachi-3-chome Chuo-ku Osaka / JP | [N/P] |
| Former [1994/43] | For all designated states WAKO PURE CHEMICAL INDUSTRIES LTD 1-2 Doshomachi-3-chome Chuo-ku Osaka / JP | Inventor(s) | 01 /
Iritani, Takehiko, c/o Tokyo Kenkyusho Wako Pure Chemical Industries, LTD 1633, Matoba, Kawagoe-shi / JP | 02 /
Kinoshita, Ryohiko, c/o Tokyo Kenkyusho Wako Pure Chemical Industries,LTD 1633, Matoba, Kawagoe-shi / JP | 03 /
Kametani, Yoshiki, c/o Tokyo Kenkyusho Wako Pure Chemical Industries, LTD 1633, Matoba, Kawagoe-shi, LTD / JP | [1994/43] | Representative(s) | Baillie, Iain Cameron Langner Parry, 52-54 High Holborn London WC1V 6RR / GB | [N/P] |
| Former [1995/20] | Baillie, Iain Cameron Langner Parry 52-54 High Holborn London WC1V 6RR / GB | ||
| Former [1994/43] | Baillie, Iain Cameron c/o Ladas & Parry Altheimer Eck 2 D-80331 München / DE | Application number, filing date | 94302750.8 | 19.04.1994 | [1994/43] | Priority number, date | JP19930117967 | 21.04.1993 Original published format: JP 11796793 | [1994/43] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0621260 | Date: | 26.10.1994 | Language: | EN | [1994/43] | Type: | B1 Patent specification | No.: | EP0621260 | Date: | 05.02.1997 | Language: | EN | [1997/06] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 03.08.1994 | Classification | IPC: | C07C213/08 | [1994/43] | CPC: |
C07C213/08 (EP,US)
| Designated contracting states | BE, DE, NL [1994/43] | Title | German: | Verfahren zur Herstellung von ein N,N-disubstituiertes p-Phenylendiamine sulfat Derivate | [1994/43] | English: | Process for producing N,N-disubstituted p-phenylenediamine derivative sulphate | [1994/43] | French: | Procédé pour la préparation d'un dérivé de la p-phénylènediamine sulfate N,N-disubstituiertes p-Phenylendiamine sulfat-Derivate | [1994/43] | Examination procedure | 15.03.1995 | Examination requested [1995/20] | 04.04.1996 | Despatch of communication of intention to grant (Approval: Yes) | 18.07.1996 | Communication of intention to grant the patent | 14.10.1996 | Fee for grant paid | 14.10.1996 | Fee for publishing/printing paid | Opposition(s) | 06.11.1997 | No opposition filed within time limit [1998/05] | Fees paid | Renewal fee | 17.04.1996 | Renewal fee patent year 03 |
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