Siny Corp tried to register its trademark “Casalana” for a knit textile used in the manufacture of outerwear, gloves and the like. As its specimen of use in commerce, Siny submitted pages from its website. But the United States Patent and Trademark Office refused the specimen because it was mere advertising and not evidence of use in commerce. Siny appealed the decision all the way up to the Federal Court of Appeals and lost. Where did Siny go wrong?