A trademark is not a one-time registration; it requires ongoing maintenance to remain valid. In the U.S., trademarks must be renewed after five years and then again every ten years. Failing to renew your trademark could result in losing legal protection, allowing others to use your brand elements. LLC owners must stay on top of renewal deadlines to ensure how much does it cost to register a trademark in Canada remains active and enforceable. Additionally, continued use of the trademark is required to maintain its validity.