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EP0077451
European procedure
Extract from the Register of European Patents
EP Event history: EP0077451
| Date | Description | European Patent Bulletin date, issue number |
|---|---|---|
| 22.04.1989 | Lapse of the patent in a contracting state | published on 07.06.1989 [1989/23] |
| 31.03.1989 | No opposition filed within time limit | published on 17.05.1989 [1989/20] |
| 23.04.1988 | (Expected) grant | published on 08.06.1988 [1988/23] |
| 23.01.1987 | First examination report | |
| 30.01.1986 | Publication of search report | published on 19.03.1986 [1986/12] |
| 09.01.1986 | Change - classification | published on 26.02.1986 [1986/09] |
| 26.08.1983 | Request for examination filed | published on 26.10.1983 [1983/43] |
| 26.02.1983 | Publication in section I.1 EP Bulletin | published on 27.04.1983 [1983/17] |