EP0091055 - Process for preparing polyphenylene ethers [Right-click to bookmark this link] | Status | Patent revoked Status updated on 03.04.1990 Database last updated on 31.08.2024 | Most recent event Tooltip | 05.10.2005 | Change: Appeal number | Applicant(s) | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 67063 Ludwigshafen / DE | [N/P] |
Former [1983/41] | For all designated states BASF Aktiengesellschaft Carl-Bosch-Strasse 38 D-67063 Ludwigshafen / DE | Inventor(s) | 01 /
Hambrecht, Juergen, Dr. Werderstrasse 30 D-6900 Heidelberg / DE | 02 /
Naarmann, Herbert, Dr. Haardtblick 15 D-6719 Wattenheim / DE | 03 /
Muench, Volker, Dr. Luitpoldstrasse 114 D-6700 Ludwigshafen / DE | 04 /
Brandt, Hermann, Dr. Vogelgartenstrasse 50 D-6707 Schifferstadt / DE | 05 /
Swoboda, Johann, Dr. Neuwiesenstrasse 28 D-6700 Ludwigshafen / DE | [1983/41] | Application number, filing date | 83103051.5 | 28.03.1983 | [1983/41] | Priority number, date | DE19823212925 | 07.04.1982 Original published format: DE 3212925 | [1983/41] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0091055 | Date: | 12.10.1983 | Language: | DE | [1983/41] | Type: | B1 Patent specification | No.: | EP0091055 | Date: | 11.06.1986 | Language: | DE | [1986/24] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 22.07.1983 | Classification | IPC: | C08G65/44 | [1983/41] | CPC: |
C08G65/44 (EP)
| Designated contracting states | BE, DE, FR, GB, NL [1983/41] | Title | German: | Verfahren zur Herstellung von Polyphenylenethern | [1983/41] | English: | Process for preparing polyphenylene ethers | [1983/41] | French: | Procédé de fabrication de poly(éther de phénylène) | [1983/41] | Examination procedure | 05.11.1983 | Examination requested [1984/02] | 04.02.1985 | Despatch of a communication from the examining division (Time limit: M04) | 11.04.1985 | Reply to a communication from the examining division | 30.10.1985 | Despatch of communication of intention to grant (Approval: ) | 12.12.1985 | Communication of intention to grant the patent | 27.02.1986 | Fee for grant paid | 27.02.1986 | Fee for publishing/printing paid | Opposition(s) | Opponent(s) | 01
27.02.1987
01.04.1987
ADMISSIBLE Hüls Aktiengesellschaft Patentabteilung/PB 15 D-45764 Marl / DE | [N/P] |
Former [1987/18] | |||
Opponent(s) | 01
27.02.1987
01.04.1987
ADMISSIBLE HÜLS AKTIENGESELLSCHAFT Patentabteilung/PB 15 D-45764 Marl / DE | 23.04.1987 | Invitation to proprietor to file observations on the notice of opposition | 03.07.1987 | Reply of patent proprietor to notice(s) of opposition | 13.07.1987 | Communication of observations of patent proprietor (Time limit: M02) | 04.09.1987 | Reply of parties involved to observations of patent proprietor | 18.01.1990 | Legal effect of revocation of patent [1990/21] | 18.01.1990 | Despatch of communication that the patent will be revoked | Appeal following opposition | 11.06.1988 | Appeal received No. T0242/88 | 05.08.1988 | Statement of grounds filed | 18.01.1990 | Result of appeal procedure: revocation of the patent | 18.01.1990 | Date of oral proceedings | 09.01.1990 | Minutes of the oral proceedings despatched | Fees paid | Renewal fee | 16.03.1985 | Renewal fee patent year 03 | 15.03.1986 | Renewal fee patent year 04 |
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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 | JPS4428316B [ ] (JAPAN SYNTHETIC CHEMICAL INDUSTRY CO., LTD.)); | [A]US3337501 (JAN BUSSINK, et al); | [A]EP0047428 (BASF AG [DE]) | [X] - CHEMICAL ABSTRACTS, (19700323), vol. 72, no. 12, Database accession no. 56083H, page 16 | [Y] - LICHOTA D. ET AL, "Poly(phenylene oxides). II. Oxidative polymerization of 2,6-xylenol in the presence of cuprous chloride and triethylenediamine", CHEMICAL ABSTRACTS, (19700921), vol. 73, no. 12, Database accession no. 56496R, page 4 | [ ] - POLIMERY, (1970), vol. 15, no. 1, pages 5 - 7 | [A] - BAILY J., "Two-stage oxidative polymerization of 2,6-xylenol to high-molecular-weight poly(phenylene oxide). Synthesis of oligomers. II. Relative activities of phenol, resols, and xylenols", CHEMICAL ABSTRACTS, (19700713), vol. 73, no. 2, Database accession no. 4216E, page 2 | [ ] - POLIMERY, (1969), vol. 14, no. 11, pages 535 - 538 |