The trademark application procedures:
Send request to USPTO the logo design and the business you will do.
USPTO will reply back how many and what type of classes you need to apply.
Each class application fee is $275. (2021 change to $250)
We charge $75 service fee to help customers to apply.
Now there are some website you can search pictures who use it first and where.
Most recently, we have customers try to do multiple businesses. Their trademark application covers 3 classes.