Case T-28/08: Judgment of the Court of First Instance of 8 July 2009 — Mars v OHIM — Ludwig Schokolade (Shape of a chocolate bar) (Community trade mark — Invalidity proceedings — Community three-dimensional mark — Shape of a chocolate bar — Absolute ground for refusal — Lack of distinctive character — Article 7(1)(b) of Regulation (EC) No 40/94 (now Article 7(1)(b) of Regulation (EC) No 207/2009) — Lack of distinctive character acquired through use — Article 7(3) of Regulation No 40/94 (now Article 7(3) of Regulation No 207/2009) — Right to be heard — Articles 73 and 74 of Regulation No 40/94 (now Articles 75 and 76 of Regulation No 207/2009))