Case C-514/18 P: Judgment of the Court (Tenth Chamber) of 17 October 2019 – Landeskammer für Land- und Forstwirtschaft in Steiermark v Gabriele Schmid, European Union Intellectual Property Office (EUIPO) (Appeal — European Union trade mark — Regulation (EC) No 207/2009 — Article 15 — Concept of ‘genuine use’ — Requirement to use the mark in accordance with its essential function)