Case C-653/17 P: Judgment of the Court (Fifth Chamber) of 15 May 2019 — VM Vermögens-Management GmbH v European Union Intellectual Property Office (EUIPO), DAT Vermögensmanagement GmbH (Appeal — EU trade mark — Regulation (EC) No 207/2009 — Regulation (EU) 2015/2424 — Invalidity proceedings — Word mark Vermögensmanufaktur — Declaration of invalidity — Right to a fair hearing — Examination of the facts by EUIPO of its own motion — Retrospectivity — Jurisdiction of the General Court — Statement of reasons for judgments)