| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 30.11.2007 | Lapse of the patent in a contracting state | published on 02.01.2008 [2008/01] |
| 17.02.2006 | Change - lapse in a contracting state | published on 05.04.2006 [2006/14] |
| 28.12.2002 | Lapse of the patent in a contracting state | published on 12.02.2003 [2003/07] |
| 03.09.1999 | Lapse of the patent in a contracting state | published on 20.10.1999 [1999/42] |
| 14.02.1997 | Lapse of the patent in a contracting state | published on 02.04.1997 [1997/14] |
| 31.01.1997 | Lapse of the patent in a contracting state | published on 19.03.1997 [1997/12] |
| 31.01.1997 | No opposition filed within time limit | published on 19.03.1997 [1997/12] |
| 08.11.1996 | Lapse of the patent in a contracting state | published on 27.12.1996 [1996/52] |
| 09.02.1996 | (Expected) grant | published on 27.03.1996 [1996/13] |
| 09.01.1996 | Renewal fee | |
| 07.10.1994 | First examination report | |
| 26.08.1991 | Publication of search report | published on 16.10.1991 [1991/42] |
| 24.05.1991 | Publication in section I.1 EP Bulletin | published on 10.07.1991 [1991/28] |
| 24.05.1991 | Request for examination filed | published on 10.07.1991 [1991/28] |