Case T-261/18: Judgment of the General Court of 24 September 2019 — Roxtec v EUIPO — Wallmax (Representation of a black square containing seven concentric blue circles) (EU trade mark — Invalidity proceedings — EU figurative trade mark depicting a black square containing seven concentric blue circles — Absolute ground for refusal — Sign consisting exclusively of the shape of goods which is necessary to obtain a technical result — Article 7(1)(e)(ii), of Regulation (EU) 2017/1001)