On My Mind Blog

In the Old Testament, King Solomon proposed to resolve a dispute between two women who both claimed to be the mother of an infant by declaring that the baby should be cut in two, with each woman receiving half. When one mother immediately objected and begged Solomon to give the baby to the other woman to save its life, Solomon determined that she was the true mother and awarded her custody.  

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.