Domain Name Registered Trademark. If you trademark your domain name you have legal protection if someone uses your trademarked name. The owner of the domain name was the first to use it in association with the sale of goods or services.
If the trademark owner has registered a name with the US. A trade mark may not be registrable if it is different or similar to a previously registered trade mark. The owner of the domain name was the first to use it in association with the sale of goods or services.
When it comes to protecting your brand a registered trade mark is a powerful option.
If you register your domain names but dont use your website to sell your products and you dont trademark the name there isnt anything you can do to stop the other company. In trying to stop the infringing use the plaintiff may try to obtain a preliminary injunction which is a court order to stop the infringing use pending a trial. That is they describe whole categories of products or services. A trade mark may not be registrable if it is different or similar to a previously registered trade mark.