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EP0252474
European procedure
Extract from the Register of European Patents
EP About this file: EP0252474
| EP0252474 - Hydrazine derivatives [Right-click to bookmark this link] | |||
| Former [1988/02] | Substituted 1,2,3-thiadiazole-4-thiolates | ||
| [1993/16] | Status | No opposition filed within time limit Status updated on 24.02.1994 Database last updated on 03.09.2024 | Most recent event Tooltip | 24.02.1994 | No opposition filed within time limit | published on 13.04.1994 [1994/15] | Applicant(s) | For all designated states AMERICAN CYANAMID COMPANY One Cyanamid Plaza Wayne, NJ 07470-8426 / US | [1994/04] |
| Former [1988/02] | For all designated states AMERICAN CYANAMID COMPANY 1937 West Main Street P.O. Box 60 Stamford Connecticut 06904-0060 / US | Inventor(s) | 01 /
Lee, Ving Jick 19 Shuart Road Monsey New York 10952 / US | 02 /
Curran, William Vincent 27 Harding Street Pearl River New York 10965 / US | [1988/02] | Representative(s) | Wächtershäuser, Günter Wächtershäuser & Hartz Patentanwälte Ottostrasse 4 80333 München / DE | [N/P] |
| Former [1988/02] | Wächtershäuser, Günter, Prof. Dr. Patentanwalt, Tal 29 D-80331 München / DE | Application number, filing date | 87109703.6 | 06.07.1987 | [1988/02] | Priority number, date | US19860883189 | 08.07.1986 Original published format: US 883189 | [1988/02] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0252474 | Date: | 13.01.1988 | Language: | EN | [1988/02] | Type: | A3 Search report | No.: | EP0252474 | Date: | 09.08.1989 | Language: | EN | [1989/32] | Type: | B1 Patent specification | No.: | EP0252474 | Date: | 21.04.1993 | Language: | EN | [1993/16] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 21.06.1989 | Classification | IPC: | C07C327/58 | [1993/16] | CPC: |
C07D417/04 (EP,US);
C07C327/58 (KR);
C07D285/06 (EP,US);
C07D309/04 (EP,US);
C07D333/24 (EP,US)
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| Former IPC [1988/02] | C07C153/00, C07D285/06 | Designated contracting states | AT, BE, CH, DE, ES, FR, GB, GR, IT, LI, NL, SE [1988/02] | Title | German: | Hydrazin-Derivate | [1993/16] | English: | Hydrazine derivatives | [1993/16] | French: | Derivés d'hydrazine | [1993/16] |
| Former [1988/02] | Substituierte 1,2-thiadiazole-4-thiolate | ||
| Former [1988/02] | Substituted 1,2,3-thiadiazole-4-thiolates | ||
| Former [1988/02] | 1,2-Thiadiazole-4-thiolates substitués | Miscellaneous | EPB 1993/16: Teilanmeldung 92117416.5 eingereicht am 06/07/87 | EPB 1993/16: Divisional application 92117416.5 filed on 06/07/87 | EPB 1993/16: Demande divisionnaire 92117416.5 déposée le 06/07/87 | Examination procedure | 17.01.1990 | Examination requested [1990/12] | 16.10.1991 | Despatch of a communication from the examining division (Time limit: M06) | 27.04.1992 | Reply to a communication from the examining division | 12.06.1992 | Despatch of communication of intention to grant (Approval: No) | 16.10.1992 | Despatch of communication of intention to grant (Approval: later approval) | 22.10.1992 | Communication of intention to grant the patent | 29.12.1992 | Fee for grant paid | 29.12.1992 | Fee for publishing/printing paid | Divisional application(s) | EP92117416.5 / EP0525832 | Opposition(s) | 22.01.1994 | No opposition filed within time limit [1994/15] | Fees paid | Renewal fee | 29.04.1989 | Renewal fee patent year 03 | 17.04.1990 | Renewal fee patent year 04 | 02.05.1991 | Renewal fee patent year 05 | 16.05.1992 | Renewal fee patent year 06 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Documents cited: | Search | [A]CH556862 (AIR PROD & CHEM) | [A] - Journal of the Chemical Society, Perkin Transactions I, 1984, pages 2693-2695; London, GB, J. ALVAREZ-BUILLA et al.: "Use of 1-(methylthio)thiocarbonyl-(methyl)-pyridinium iodiode as the starting material for the synthesis of 1-heteroarylmethyl-pyridinium salts". |