question.jpgIn Trademarks

How long does a common law trademark last?

State trademark protection under the common law (protection for trademarks which are not registered federally or with a state) lasts indefinitely. As long as the trademark owner continues to use the mark, and as long as the mark does not become generic, the trademark owner will continue to have rights in the mark. Once the trademark owner stops using the mark, however, they will no longer have any enforceable rights.