Trade marks identify the goods and services of particular traders. Signs that are suitable for distinguishing products or services of a particular enterprise from that of other companies are eligible for trade mark protection. These signs may consist of words, letters, numbers, pictures, or even colours or sounds.Registration of a trade mark confers to its owner the exclusive right to use the trade mark in relation to the protected goods and/or services. Trade mark owners can sell and assign their trade marks anytime. The owner of a trade mark can grant others a right of use of the trade mark (trade mark licence).A trade mark can be renewed indefinitely and last forever. If the renewal fee is not paid every ten years, the registration will be cancelled.