EP0182872 - A PROCESS FOR THE PREPARATION OF CYCLOBUTENE-SUBSTITUTED AROMATIC HYDROCARBONS [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 30.08.1990 Database last updated on 02.11.2024 | Most recent event Tooltip | 07.03.1997 | Lapse of the patent in a contracting state | published on 23.04.1997 [1997/17] | Applicant(s) | For all designated states The Dow Chemical Company 2020 Dow Center Midland, Michigan 48674 / US | [N/P] |
Former [1986/23] | For all designated states THE DOW CHEMICAL COMPANY 2030 Dow Center Abbott Road P.O. Box 1967 Midland Michigan 48640-1967 / US | Inventor(s) | 01 /
SO, Ying-Hung 1524 Dilloway Drive Midland, MI 48640 / US | [1986/23] | Representative(s) | Sternagel, Hans-Günther, et al Patentanwälte Sternagel & Fleischer Braunsberger Feld 29 51429 Bergisch Gladbach / DE | [N/P] |
Former [1986/23] | Sternagel, Hans-Günther, Dr., et al Patentanwälte Dr. Michael Hann Dr. H.-G. Sternagel Sander Aue 30 D-51465 Bergisch Gladbach / DE | Application number, filing date | 85902848.2 | 20.05.1985 | [1986/23] | WO1985US00939 | Priority number, date | US19840612164 | 21.05.1984 Original published format: US 612164 | [1986/23] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | WO8505355 | Date: | 05.12.1985 | Language: | EN | [1985/26] | Type: | A1 Application with search report | No.: | EP0182872 | Date: | 04.06.1986 | Language: | EN | The application published by WIPO in one of the EPO official languages on 05.12.1985 takes the place of the publication of the European patent application. | [1986/23] | Type: | B1 Patent specification | No.: | EP0182872 | Date: | 08.11.1989 | Language: | EN | [1989/45] | Search report(s) | International search report - published on: | US | 05.12.1985 | (Supplementary) European search report - dispatched on: | EP | 21.08.1986 | Classification | IPC: | C07C39/17, C07C51/09 | [1986/23] | CPC: |
C07C69/76 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, IT, LI, NL [1986/23] | Title | German: | VERFAHREN ZUR HERSTELLUNG ZYKLOBUTENSUBSTITUIERTER AROMATISCHER KOHLENWASSERSTOFFE | [1986/23] | English: | A PROCESS FOR THE PREPARATION OF CYCLOBUTENE-SUBSTITUTED AROMATIC HYDROCARBONS | [1986/23] | French: | PROCEDE DE PREPARATION D'HYDROCARBURES AROMATIQUES A SUBSTITUTION DE CYCLOBUTENE | [1986/23] | Entry into regional phase | 16.01.1986 | National basic fee paid | 16.01.1986 | Search fee paid | 16.01.1986 | Designation fee(s) paid | 16.01.1986 | Examination fee paid | Examination procedure | 16.01.1986 | Examination requested [1986/23] | 06.11.1987 | Despatch of a communication from the examining division (Time limit: M04) | 09.03.1988 | Reply to a communication from the examining division | 19.05.1988 | Despatch of a communication from the examining division (Time limit: M02) | 19.07.1988 | Reply to a communication from the examining division | 08.08.1988 | Despatch of communication of intention to grant (Approval: Yes) | 07.12.1988 | Communication of intention to grant the patent | 23.02.1989 | Fee for grant paid | 23.02.1989 | Fee for publishing/printing paid | Opposition(s) | 09.08.1990 | No opposition filed within time limit [1990/42] | Fees paid | Renewal fee | 23.03.1987 | Renewal fee patent year 03 | 01.03.1988 | Renewal fee patent year 04 | 16.03.1989 | Renewal fee patent year 05 |
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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. | Cited in | International search | [Y] - Journal of the American Chemical Society, Vol. 91 No. 27 December 1969 A.G. LOUDEN et al. "Gas-Phase Eliminations. XI. The Pyrolysis of -Chloro-o-Xylene" | [Y] - Tetrahedron Letters, No. 46 1978 PETER SCHIESS et al "Preparation of Benzocyclobutenes by Flash Vacuum Pyrolysis" | [Y] - Tetrahedron Letters, No. 44 1978 V. BOEKELHEIDE et al, "The Use of Benzocyclobutenes as Intermediates in Syntheiss of Multibridged Cyclophanes". | [Y] - Pyrolytic Medhods in Organic Chemistry, BROWN, Academic Press, New York, (1980) pages 105-6 |