Chapter I – Examination by the Receiving Section
(1) If the designation of the inventor has not been made in accordance with Rule 19, the European Patent Office shall inform the applicant that the European patent application will be refused unless the designation is made within sixteen months of the date of filing of the application or, if priority is claimed, of the date of priority, this period being deemed to have been observed if the information is communicated before completion of the technical preparations for the publication of the European patent application.
(2) Where, in a divisional application or a new application under Article 61, paragraph 1(b), the designation of the inventor has not been made in accordance with Rule 19, the European Patent Office shall invite the applicant to make the designation within a period to be specified.