General Court 9 March 2015, T-377/13 (Case T-377/13: Judgment of the General Court of 9 March 2015 — ultra air v OHIM — Donaldson Filtration Deutschland (ultra.air ultrafilter) (Community trade mark — Invalidity proceedings — Community word mark ultra.air ultrafilter — Absolute ground for refusal — Descriptiveness — Article 7(1)(c) of Regulation (EC) No 207/2009 — Article 52(1)(a) of Regulation No 207/2009))

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