| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 05.10.2005 | Change: Appeal number | |
| 23.12.1999 | Lapse of the patent in a contracting state | published on 09.02.2000 [2000/06] |
| 19.06.1998 | Patent maintained (B2 publication) | published on 05.08.1998 [1998/32] |
| 10.06.1998 | Communication/fee (R.58(5) EPC1973) | |
| 26.02.1998 | Communication/fee (R.58(5) EPC1973) | |
| 07.01.1998 | Interlocutory decision in opposition | |
| 05.01.1998 | Change - appeal | |
| 09.12.1997 | Change - oral proceedings | |
| 09.12.1997 | Change - oral proceedings | |
| 13.08.1997 | Change - oral proceedings | |
| 22.01.1997 | Change - appeal number | |
| 18.01.1997 | Change - appeal | |
| 21.12.1996 | Interlocutory decision in opposition | |
| 18.05.1996 | Communication of examination report in opposition | |
| 19.04.1996 | Communication of examination report in opposition | |
| 04.01.1996 | Communication of examination report in opposition | |
| 16.06.1994 | Lapse of the patent in a contracting state | published on 03.08.1994 [1994/31] |
| 07.03.1994 | Opposition filed | published on 27.04.1994 [1994/17] |
| 19.11.1993 | (Expected) grant | published on 05.01.1994 [1994/01] |
| 26.05.1992 | First examination report | |
| 19.12.1990 | Request for examination filed | published on 06.02.1991 [1991/06] |
| 04.09.1990 | Publication of search report | published on 24.10.1990 [1990/43] |
| 31.03.1990 | Publication in section I.1 EP Bulletin | published on 16.05.1990 [1990/20] |