Judgment of the Court of First Instance of 12 March 2003 in Case T-174/01: Jean M. Goulbourn v Office for Harmonisation in the Internal Market (Trade Marks and Designs) (OHIM) (Community trade mark — Opposition procedure — Application for Community word mark Silk Cocoon — Earlier word mark COCOON — Proof of genuine use of earlier mark — Article 43(2) and (3) of Regulation (EC) No 40/94 — Right to be heard)