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EP0234925
European procedure
Extract from the Register of European Patents
EP Event history: EP0234925
| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 13.07.1991 | No opposition filed within time limit | published on 04.09.1991 [1991/36] |
| 28.07.1990 | (Expected) grant | published on 12.09.1990 [1990/37] |
| 07.11.1989 | First examination report | |
| 20.04.1988 | Change - divisional application(s) | published on 08.06.1988 [1988/23] |
| 31.03.1988 | Request for examination filed | published on 18.05.1988 [1988/20] |
| 22.09.1987 | Publication of search report | published on 11.11.1987 [1987/46] |
| 18.07.1987 | Publication in section I.1 EP Bulletin | published on 02.09.1987 [1987/36] |