Judgment of the General Court (Third Chamber) of 1 September 2021.#e*Message Wireless Information Services GmbH v European Union Intellectual Property Office.#EU trade mark – Invalidity proceedings – EU figurative mark e*message – Absolute grounds for refusal – Descriptive character – Lack of distinctive character – Declaration of invalidity – Provisions applicable ratione temporis – Application of subsequent case-law – Article 17 of the Charter of Fundamental Rights – Principles of protection of legitimate expectations and of legal certainty.#Case T-834/19.