&Nbsp; logo must be approved by the national authority registered enjoys an exclusive right on the law. In the process of applying for registration of trademarks of whether there are many uncertain factors. If you are not registered, then as a trademark of the people to suffer. Take a step back and said, even to be registered may also be due to other reasons that the trademark registration was extended for value was discounted. For have not yet applied for registration of the trade mark is highly variable, probably because someone else's registration at any time are asked to stop using even wanted to apply for, or is likely to constitute a conflict with other registered trade mark cannot be registered. So under normal circumstances, made no application for registration of a trade mark do not buy.