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Case Law of the Boards of Appeal

 
 
5.5.1 Legal provisions

Under R. 139 EPC (formerly R. 88 EPC 1973), mistakes in any document filed with the EPO may be corrected on request. However, if the request for such correction concerns the description, claims or drawings, the correction must be obvious in the sense that it is immediately evident that nothing else would have been intended than what is offered as the correction.