6.8 Translation of the previous application 

Where the previous application claimed as priority is not in an official EPO language and the validity of the priority claimed is relevant for assessing the patentability of the invention concerned, the EPO will invite the applicant for or proprietor of the European patent to file a translation into an official EPO language within a period specified. The duration of this period will vary depending on the stage of proceedings at which the invitation is sent (see the subsequent subsections).