Judgment of the Court (Fifth Chamber) of 21 November 2002 in Case C-473/00 (Reference for a preliminary ruling from the tribunal d'instance de Vienne): Cofidis SA v Jean-Louis Fredout (Directive 93/13/EEC — Unfair terms in consumer contracts — Action brought by a seller or supplier — National provision prohibiting the national court from finding a term unfair, of its own motion or following a plea raised by the consumer, after the expiry of a limitation period)