| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 28.12.2007 | Lapse of the patent in a contracting state | published on 30.01.2008 [2008/05] |
| 28.12.2002 | Lapse of the patent in a contracting state | published on 12.02.2003 [2003/07] |
| 03.05.2002 | Lapse of the patent in a contracting state | published on 19.06.2002 [2002/25] |
| 03.09.1999 | Lapse of the patent in a contracting state | published on 20.10.1999 [1999/42] |
| 18.04.1997 | No opposition filed within time limit | published on 04.06.1997 [1997/23] |
| 07.03.1997 | Lapse of the patent in a contracting state | published on 23.04.1997 [1997/17] |
| 29.11.1996 | Lapse of the patent in a contracting state | published on 15.01.1997 [1997/03] |
| 26.04.1996 | (Expected) grant | published on 12.06.1996 [1996/24] |
| 22.03.1996 | Communication of intention to grant a patent | |
| 21.12.1995 | Communication of intention to grant a patent | |
| 04.05.1995 | First examination report | |
| 01.08.1994 | Request for examination filed | published on 21.09.1994 [1994/38] |
| 07.01.1994 | Publication in section I.1 EP Bulletin | published on 23.02.1994 [1994/08] |