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EP0000722
European procedure
Extract from the Register of European Patents
EP About this file: EP0000722
| EP0000722 - Process for the preparation of polyurethanes containing arylsulfonic acid alkyl ester groups [Right-click to bookmark this link] | |||
| Former [1982/39] | Polyurethanes containing arylsulfonic acid alkyl ester groups and process for their preparation | ||
| [1982/39] | Status | No opposition filed within time limit Status updated on 14.09.2016 Database last updated on 26.04.2025 | Most recent event Tooltip | 14.09.2016 | No opposition filed within time limit | Applicant(s) | For all designated states BAYER AG 51368 Leverkusen / DE | [N/P] | Inventor(s) | 01 /
Dieterich, Dieter, Dr. Ludwig-Girtler-Strasse 1 D-5090 Leverkusen / DE | [N/P] | Application number, filing date | 78100484.1 | 24.07.1978 | Priority number, date | DE19772735047 | 03.08.1977 Original published format: DE 2735047 | Filing language | DE | Procedural language | DE | Publication | Type: | A1 Application with search report | No.: | EP0000722 | Date: | 21.02.1979 | Language: | DE | [N/P] | Type: | B1 Patent specification | No.: | EP0000722 | Date: | 29.09.1982 | Language: | DE | [1982/39] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 07.12.1978 | Classification | IPC: | C08G18/77, C08G18/71 | [1982/39] | CPC: |
C08G18/775 (EP,US);
C08G18/715 (EP,US)
| Designated contracting states | BE, CH, DE, FR, GB, NL | Title | German: | Verfahren zur Herstellung von Arylsulfonsäure Alkylester-Gruppen aufweisenden Polyurethanen | [1982/39] | English: | Process for the preparation of polyurethanes containing arylsulfonic acid alkyl ester groups | [1982/39] | French: | Procédé pour la préparation de polyuréthanes contenant des groupes ester alcoyle d'acide arylsulfonique | [1982/39] |
| Former [1982/39] | Arylsulfonsäurealkylestergruppen aufweisende Polyurethane und Verfahren zu deren Herstellung | ||
| Former [1982/39] | Polyurethanes containing arylsulfonic acid alkyl ester groups and process for their preparation | ||
| Former [1982/39] | Polyuréthanes contenant des groupes ester alcoyle d'acide arylsulfonique et leur procédé de préparation | File destroyed: | 12.06.1999 | Examination procedure | 24.07.1978 | Examination requested | 05.07.1979 | Despatch of a communication from the examining division (Time limit: {0}) | 28.11.1980 | Despatch of a communication from the examining division (Time limit: M02) | 10.01.1981 | Reply to a communication from the examining division | 14.08.1981 | Despatch of communication of intention to grant (Approval: ) | 29.03.1982 | Communication of intention to grant the patent | 20.04.1982 | Fee for grant paid | 20.04.1982 | Fee for publishing/printing paid | Opposition(s) | 30.06.1983 | No opposition filed within time limit [ N /P ] | Fees paid | Renewal fee | 27.06.1980 | Renewal fee patent year 03 | 08.07.1981 | Renewal fee patent year 04 | 15.07.1982 | 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. | Documents cited: | Search | [P]FR2370064 (BAYER AG [DE]) |