Describe your offering first
List the products or services associated with your trademark in clear terms before selecting classes.
Understand classification
Classes organize goods and services. Choosing a class alone is not a substitute for an appropriate description.
Check the filing scope
Your current activities and proposed application basis help determine which information needs to be considered.
Review the cost impact
More than one class can affect government fees. Confirm the scope and starting estimate with your team.
Go to the official source
For current requirements and your application record, review the official guidance and seek advice relevant to your situation.
Read USPTO guidance