Case T-611/17: Judgment of the General Court of 29 March 2019 — All Star v EUIPO — Carrefour Hypermarchés (Shape of a shoe sole) (EU trade mark — Invalidity proceedings — Three-dimensional EU trade mark — Shape of a shoe sole — Well known facts — Obligation to state reasons — Rights of defence — Article 75 of Regulation (EC) No 207/2009 (now Article 94(1) of Regulation (EU) 2017/1001) — Absolute ground for refusal — Lack of distinctive character — Article 7(1)(b) of Regulation No 207/2009 (now Article 7(1)(b) of Regulation 2017/1001) — Distinctive character acquired through use — Article 7(3) and Article 52(2) of Regulation No 207/2009 (now Article 7(3) and Article 59(2) of Regulation 2017/1001) — Rejection of the request to hold a hearing before the Board of Appeal — Article 77 of Regulation No 207/2009 (now Article 96(1) of Regulation 2017/1001)