Invalid Assignment (Trademark) Law and Legal Definition
Any assignment of a trademark is invalid if the assignment of the mark is made without assignment of the goodwill associated with the mark. If there is no goodwill associated with a product or business, assigning a trademark it can be deceitful to the public or an indication that the mark was abandoned. If a mark is invalidly assigned, the usual result is that the company that purchased the mark is deprived of the benefit of the early priority date of the assignor. In such cases, the assignee should start all over with a new priority date beginning when the assignee begins using the mark in commerce.