Your trademark is unique enough to pass the trademark searches and thereby liable to get registered is the first and foremost thing that you need to ensure.

USPTO has established some rules which will make you understand how unique the trademark has to be and what is expected of it to be counted as a unique trademark. As already stated completing a thorough trademark search to avoid chances of piracy is of primary importance.

A lawyer will be assigned to investigate this. They are called ‘examining attorneys’. They are supposed to search the United States Patent and Trade Office records to ensure the exclusivity of your trademark, eliminating chances of close resemblances with some one else’s design or logo. If at all the USPTO finds your trademark having any similarity with any of the already registered one, your application won’t get through. Your trademark has to face not only the already existing ones but those which await approval too.