Court of Justice 12 September 2013, C‑409/12 (Backaldrin Österreich The Kornspitz Company GmbH v Pfahnl Backmittel GmbH.)

OPINION OF ADVOCATE GENERAL CRUZ VILLALÓN delivered on 12 September 2013 ( 1 ) Case C‑409/12 Backaldrin Österreich The Kornspitz Company GmbH v Pfahnl Backmittel GmbH (Request for a preliminary ruling from the Oberster Patent- und Markensenat (Austria)) ‛Trade marks — Article 12(2)(a) — Directive 2008/95/EC — Grounds for revocation — Trade mark which has become the common name in the trade for a