Case T-660/11: Judgment of the General Court of 16 June 2015 — Polytetra v OHIM — EI du Pont de Nemours (POLYTETRAFLON) (Community trade mark — Opposition proceedings — Application for Community word mark POLYTETRAFLON — Earlier Community word mark TEFLON — No genuine use of the earlier mark — Article 42(2) and (3) of Regulation (EC) No 207/2009 — Final product incorporating a component — Use of the earlier mark in respect of the final products of third parties — Duty to state reasons)