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Following a clean-up exercise of event information regarding (previously) revoked patents, that were later reinstated, some existing revocation events ("Despatch of communication that patent is revoked") were duplicated on 15.04.2019.


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Extract from the Register of European Patents

Event history: EP0254264

Date  Description European Patent Bulletin date, issue number
31.08.1991 No opposition filed within time limit published on  23.10.1991 [1991/43]
15.09.1990 (Expected) grant published on  31.10.1990 [1990/44]
08.09.1989 First examination report
02.09.1988 Request for examination filed published on  19.10.1988 [1988/42]
19.05.1988 Publication of search report published on  06.07.1988 [1988/27]
28.03.1988 Change - classification published on  18.05.1988 [1988/20]
28.03.1988 Change - classification published on  18.05.1988 [1988/20]
12.12.1987 Publication in section I.1 EP Bulletin published on  27.01.1988 [1988/04]