1. To identify the origin or source of goods and services and distinguish them from similar products or services of other enterprises trade mark facilitate the choice to be made by the consumer when buying certain products or making use of certain services.
2. To signify that all goods bearing the same trade mark have a single source.
3. To signify that all goods bearing the same trade mark are of the same quality. However, it is to be understood that there is no legal obligation on the trade mark owner to maintain a specific quality.
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4. In fact the House of Lords, UK has approved application of some trade mark to products of different quality in different countries. The brand owner is free to enhance or reduce the quality of the product
5. The check against deterioration of quality lies with the consumer. If a brand does not give at least the quality that the consumer associates with it, she will switch on to another brand. However, the brand owner is bound to offer the quality features as declared under trade description.
6. To serve as the principal instrument in advertising and selling of goods and services a fifth function, particularly in the case of registered trade mark has acquired importance over the years, viz. to protect the trade and business interests of the owner of the brand, as also the goodwill associated with the brand, in case of infringement of trade mark.
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