EP0518021 - Method for the production of alpha, omega-unsaturated oligomers containing methylidene groups from alpha, omega-diolefines in the presence of organoaluminium compounds as catalyst [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 26.06.1998 Database last updated on 09.09.2024 | Most recent event Tooltip | 26.06.1998 | No opposition filed within time limit | published on 12.08.1998 [1998/33] | Applicant(s) | For all designated states Röhm GmbH Chemische Fabrik Kirschenallee 64293 Darmstadt / DE | [N/P] |
Former [1995/51] | For all designated states RÖHM GMBH Chemische Fabrik Kirschenallee D-64293 Darmstadt / DE | ||
Former [1992/51] | For all designated states HÜLS AKTIENGESELLSCHAFT D-45764 Marl / DE | Inventor(s) | 01 /
Streck, Roland, Dr. Leverkusener Strasse 12 W-4370 Marl 1 / DE | 02 /
Monkiewicz, Jaroslaw, Dr. Am Alten Sportplatz 17a W-4370 Marl 1 / DE | 03 /
Wey, Hans Günther, Dr. Kassenberg 23 W-4330 Mühlheim/Ruhr / DE | [1992/51] | Application number, filing date | 92106196.6 | 10.04.1992 | [1992/51] | Priority number, date | DE19914119332 | 12.06.1991 Original published format: DE 4119332 | [1992/51] | Filing language | DE | Procedural language | DE | Publication | Type: | A2 Application without search report | No.: | EP0518021 | Date: | 16.12.1992 | Language: | DE | [1992/51] | Type: | A3 Search report | No.: | EP0518021 | Date: | 18.01.1995 | Language: | DE | [1995/03] | Type: | B1 Patent specification | No.: | EP0518021 | Date: | 20.08.1997 | Language: | DE | [1997/34] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.11.1994 | Classification | IPC: | C07C2/30, B01J31/14, C07C2/38, C07C11/21 | [1995/01] | CPC: |
C07C2/38 (EP,US);
C07C11/21 (EP,US);
C07C2531/14 (EP,US)
|
Former IPC [1992/51] | C07C2/30, B01J31/14 | Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL, SE [1992/51] | Title | German: | Verfahren zur Herstellung von Methylidengruppen enthaltenden Alpha-Omega-ungesättigten Oligomeren aus Alpha, Omega-Diolefinen in Gegenwart von aluminiumorganischen Verbindungen als Katalysator | [1992/51] | English: | Method for the production of alpha, omega-unsaturated oligomers containing methylidene groups from alpha, omega-diolefines in the presence of organoaluminium compounds as catalyst | [1992/51] | French: | Procédé pour la fabrication d'oligomères alpha, oméga-insaturés contenant des groupements méthylidènes à partir de dioléfines-alpha, oméga en présence de composés aluminiumorganiques comme catalyseur | [1992/51] | Examination procedure | 27.06.1995 | Examination requested [1995/34] | 16.10.1995 | Despatch of a communication from the examining division (Time limit: M04) | 16.01.1996 | Reply to a communication from the examining division | 01.04.1996 | Despatch of a communication from the examining division (Time limit: M02) | 27.04.1996 | Reply to a communication from the examining division | 24.07.1996 | Despatch of communication of intention to grant (Approval: Yes) | 27.11.1996 | Communication of intention to grant the patent | 16.01.1997 | Fee for grant paid | 16.01.1997 | Fee for publishing/printing paid | Opposition(s) | 21.05.1998 | No opposition filed within time limit [1998/33] | Fees paid | Renewal fee | 17.03.1994 | Renewal fee patent year 03 | 01.04.1995 | Renewal fee patent year 04 | 30.04.1996 | Renewal fee patent year 05 | 24.04.1997 | 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]US3522321 (DEYOUNG EDWIN L) [A] 1 * claim 1 *; | [A]US3088985 (GUNTHER WILKE) [A] 1 * claim 1 *; | [DA]US3391209 (ERICH MARCUS) [DA] 1 * claim 1 * | [DA] - G. HATA ET AL, JOURNAL OF ORGANIC CHEMISTRY., EASTON US, (1963), vol. 28, no. 11, pages 3237 - 3238 [DA] 1 |