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EP0142657
European procedure
Extract from the Register of European Patents
EP About this file: EP0142657
| EP0142657 - Process for the production of 1-butene-3,4-diol [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 27.10.1987 Database last updated on 31.08.2024 | Most recent event Tooltip | 27.10.1987 | No opposition filed within time limit | published on 16.12.1987 [1987/51] | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] |
| Former [1985/22] | For all designated states BAYER AG D-51368 Leverkusen / DE | Inventor(s) | 01 /
Schalenbach, Rolf, Dr. In der Kreuzau 5a D-5000 Köln 91 / DE | 02 /
Waldmann, Helmut, Dr. Henry T.v.Böttinger Strasse 15 D-5090 Leverkusen 1 / DE | [1985/22] | Application number, filing date | 84110843.4 | 12.09.1984 | [1985/22] | Priority number, date | DE19833334589 | 24.09.1983 Original published format: DE 3334589 | [1985/22] | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0142657 | Date: | 29.05.1985 | Language: | DE | [1985/22] | Type: | B1 Patent specification | No.: | EP0142657 | Date: | 30.12.1986 | Language: | DE | [1986/52] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 28.02.1985 | Classification | IPC: | C07C33/035, C07C29/56 | [1985/22] | CPC: |
C07C29/56 (EP,US)
| C-Set: |
C07C29/56, C07C33/035 (EP,US)
| Designated contracting states | BE, DE, FR, GB, IT, NL [1985/22] | Title | German: | Verfahren zur Herstellung von 1-Buten-3,4-diol | [1985/22] | English: | Process for the production of 1-butene-3,4-diol | [1985/22] | French: | Procédé de préparation de butène-1 diol-3,4 | [1985/22] | Examination procedure | 12.09.1984 | Examination requested [1985/22] | 12.11.1985 | Despatch of a communication from the examining division (Time limit: M04) | 07.03.1986 | Reply to a communication from the examining division | 25.03.1986 | Despatch of communication of intention to grant (Approval: ) | 03.07.1986 | Communication of intention to grant the patent | 09.07.1986 | Fee for grant paid | 09.07.1986 | Fee for publishing/printing paid | Opposition(s) | 01.10.1987 | No opposition filed within time limit [1987/51] | Fees paid | Renewal fee | 22.08.1986 | 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 | [XD]DE961353 (BASF AG); | [A]DE2414341 (BASF AG); | [AD]DE2605241 (GAF CORP); | [AD]US4209651 (PRICHARD WILLIAM W [US]); | [AD]DE3022288 (JAPAN SYNTHETIC RUBBER CO LTD) | [AD] - THE JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, Band 80, 1958 EASTON, PA., C.T. HANDY, H.S. ROTHROCK, "Polymeric Peroxide of 1,3-Butadiene" Seiten 5306-5308 seiten 5306, 5308 |