Case T-869/19: Judgment of the General Court of 23 September 2020 — Tetra v EUIPO — Neusta next (Wave) (EU trade mark — Invalidity proceedings — EU word mark Wave — Absolute ground for refusal — No distinctive character — Article 7(1)(b) of Regulation (EC) No 207/2009 (now Article 7(1)(b) of Regulation (EU) 2017/1001))