| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 26.04.2002 | Lapse of the patent in a contracting state | published on 12.06.2002 [2002/24] |
| 03.01.1996 | Lapse of the patent in a contracting state | published on 24.01.1996 [1996/04] |
| 14.04.1995 | No opposition filed within time limit | published on 07.06.1995 [1995/23] |
| 29.04.1994 | (Expected) grant | published on 15.06.1994 [1994/24] |
| 13.08.1991 | First examination report | |
| 23.08.1989 | Request for examination filed | published on 11.10.1989 [1989/41] |
| 10.02.1989 | Change - classification | published on 29.03.1989 [1989/13] |
| 06.02.1989 | Publication of search report | published on 29.03.1989 [1989/13] |
| 22.08.1987 | Publication in section I.1 EP Bulletin | published on 07.10.1987 [1987/41] |