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EP0218879
European procedure
Extract from the Register of European Patents
EP About this file: EP0218879
| EP0218879 - Process for the preparation of 4,4'-dihydroxydiphenyl ether [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 17.04.1990 Database last updated on 24.08.2024 | Most recent event Tooltip | 17.04.1990 | No opposition filed within time limit | published on 06.06.1990 [1990/23] | Applicant(s) | For all designated states HOECHST AKTIENGESELLSCHAFT 65926 Frankfurt am Main / DE | [N/P] |
| Former [1987/17] | For all designated states HOECHST AKTIENGESELLSCHAFT D-65926 Frankfurt am Main / DE | Inventor(s) | 01 /
Vorwerk, Edgar, Dr. Geisenheimer Strasse 88 D-6000 Frankfurt am Main 71 / DE | [1987/17] | Application number, filing date | 86112089.7 | 02.09.1986 | [1987/17] | Priority number, date | DE19853532881 | 14.09.1985 Original published format: DE 3532881 | [1987/17] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0218879 | Date: | 22.04.1987 | Language: | DE | [1987/17] | Type: | B1 Patent specification | No.: | EP0218879 | Date: | 21.06.1989 | Language: | DE | [1989/25] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 27.02.1987 | Classification | IPC: | C07C43/295, C07C41/34, C07C41/09 | [1987/17] | CPC: |
C07C41/09 (EP,US);
C07C41/34 (EP,US);
C07C43/295 (EP,US)
| C-Set: |
C07C41/09, C07C43/295 (EP,US);
C07C41/34, C07C43/295 (US,EP) | Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL [1987/17] | Title | German: | Verfahren zur Herstellung von 4,4'-Dihydroxydiphenylether | [1987/17] | English: | Process for the preparation of 4,4'-dihydroxydiphenyl ether | [1987/17] | French: | Procédé pour la préparation d'éther 4,4'-dihydroxydiphénylique | [1987/17] | Examination procedure | 16.07.1987 | Examination requested [1987/38] | 21.01.1988 | Despatch of a communication from the examining division (Time limit: M04) | 20.05.1988 | Reply to a communication from the examining division | 05.07.1988 | Despatch of a communication from the examining division (Time limit: M02) | 19.07.1988 | Reply to a communication from the examining division | 04.10.1988 | Despatch of communication of intention to grant (Approval: Yes) | 15.11.1988 | Communication of intention to grant the patent | 01.02.1989 | Fee for grant paid | 01.02.1989 | Fee for publishing/printing paid | Opposition(s) | 22.03.1990 | No opposition filed within time limit [1990/23] | Fees paid | Renewal fee | 11.08.1988 | Renewal fee patent year 03 |
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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]JP55129237 ; | [A]US4306094 (SHOZDA RAYMOND J); | [A]FR2194676 (UNION RHEINISCHE BRAUNKOHLEN [DE]) | [A] - PATENTS ABSTRACTS OF JAPAN, Band 4, Nr. 190 (C-37)[672], 26. Dezember 1980; & JP-A-55 129 237 (UBE KOSAN K.K.) 06-10-1980, & JP55129237 A 00000000 |