What is the main purpose of the Trademark Status and Document Retrieval (TSDR) database?

The main purpose of the Trademark Status and Document Retrieval (TSDR) database is to allow users to check the status of their trademark applications or registrations by entering the serial or registration number. This tool provides real-time updates on the status of trademarks, including any actions taken by the USPTO, and access to important documents related to the trademark. This functionality is essential for trademark owners who need to stay informed about the progress of their applications and any potential issues that may arise.

The other options focus on different aspects of trademark management. Filing trademark applications is handled through the Electronic Application System (TEAS), while a repository for all registered trademarks would imply a broader cataloging system that doesn't specifically address individual status checks. Legal disputes concerning trademarks exist but are managed through different legal channels, not primarily through the TSDR database. Thus, the focus of the TSDR on status checking makes it a pivotal resource for applicants and trademark owners.