Services Have Boundaries In Trademark Proceedings

In order to succeed in challenging the registration of a service mark on the ground that it is likely to cause confusion with your identical or similar mark, you must show that the respective services overlap, are complementary, or at least are within the zone of natural expansion of your services.

An example of an unsuccessful challenge involved an application to register MOSAIC for "charitable services, namely providing vocational training in the field of job responsibilities and finding employment for disabled individuals." Opposer owned an existing registration of MOSAEC for various entertainment services. However, it also claimed prior common law rights in connection with "providing vocational training."