Case T-104/25: Judgment of the General Court of 3 June 2026 – Lami Packaging v EUIPO – Tetra Laval (Shape of octagonal carton) (EU trade mark – Invalidity proceedings – Three-dimensional mark – Shape of octagonal carton – Sign consisting exclusively of the shape of goods which is necessary to obtain a technical result – Manufacturing process – Use of the product – Article 7(1)(e)(ii) and Article 51(1)(a) of Regulation (EC) No 40/94)