A Trademark or service mark is a word, name, symbol, or device used to indicate the source, quality and ownership of a product or service. It can be owned by an individual, business and legal entity serving as a mark of recognition till the time of expiration. Life of a trademark is ten years but it can be maintained and renewed according to company’s want. The registrar of trademarks will send you a letter of reminder of the expiry of the trademark six months prior to its expiry, so you can renew your trademark according to your needs.