Trademark Registration

It depends on a lot of things Kylie Jenner tried to copyright Kylie but came a cropper because Kylie Minogue objected.

Probably depends on how difficult or easy the trademark search process is. If you're trademarking a particularly unusual term. The more unusual, esoteric, rare a term? The less time it takes to research it.

Since the TOS of a2k doesn't allow people to offer legal advice, you should go straight and consult a trademark attorney or straight to online legal services like Legal Zoom to see how much it might cost for the process.