UK trademark validity period: 10 years from the date of application. If you need to continue to use the trademark after the registration validity period expires, you should apply for registration renewal 6 months before the registration validity period. Each renewal registration is valid for 10 years. European Union trademarks are valid and protected in the UK. The international registration of trademarks through the Madrid Protocol can also be extended to the United Kingdom and protected. British applicants can apply for international registration through the British Patent Office to the International Bureau based on the registration or application in the United Kingdom, thereby designating other protocol member states and obtaining trademarks in that country. Protect.