A U.S. federal
trademark can only be registered and maintained provided evidence of use (
specimens) are submitted to the U.S. Patent & Trademark Office (USPTO). A typical specimen for a tangible product is a label, tag or the like. For services, the website or a brochure. Some trademark registrations may recitate many products but the USPTO has not previously required specimens for every product recited. I have always considered this poor practice and renewals submitted through Smith & Hopen have included examples of use for each and every good or service recited. While this is not a USPTO requirement (yet), it stems the risk of a claim of fraud on the Patent & Trademark Office because the trademark application/registrant claimed to be using the brand falsely.