Extract from the Register of European Patents

EP Legal status: EP0021725

Designated contracting states DE 
FR 
GB 
Examination procedure13.12.1983Fee for publishing/printing paid
Fees paidRenewal fee
22.03.1982Renewal fee patent year 03
17.03.1983Renewal fee patent year 04
European patent granted04.04.1984
Opposition procedure05.01.1985No opposition filed within time limit published on 17.04.1985 
INPADOC data   TooltipThe EPO does not accept any responsibility for the accuracy of legal status data relating to the post-grant phase, including but not limited to their completeness and fitness for specific purposes, nor can it guarantee that such data are up to date. For authoritative information, please refer to the relevant national patent authority.
Event date:15.06.1984 
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Event date:02.03.1988 
Event description:GB: EUROPEAN PATENT CEASED THROUGH NON-PAYMENT OF RENEWAL FEE
 
Event date:07.01.1981 
Event description:DESIGNATED CONTRACTING STATES
Designated State(s):DE FR GB
 
Event date:04.04.1984 
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