After the transfer of trademark rights, it is important to officially record the trademark assignment with the PTO because:

• Prompt recordation of the assignment is the best practice to secure your rights to the assigned trademark and provide public notice;

• Failure to record your assignment could result in the loss of your rights if someone else (an innocent purchaser for value) later acquires an assignment and records; and

• There are no filing fees for electronic recordation. 

Read about the importance for prompt recordation of trademark assignments.