What is the primary purpose of using the Change Address or Representation (CAR) form?

The primary purpose of using the Change Address or Representation (CAR) form is to update attorney information across multiple files. This form allows a trademark owner or their representative to change the correspondence address or update the details of the attorney representing them in trademark matters. By using this form, it ensures that all relevant files are consistently updated without needing to submit separate updates for each individual trademark application.

This is particularly important for maintaining clear communication with the United States Patent and Trademark Office (USPTO), as well as ensuring that the legal representation is accurately reflected in the records. Keeping attorney information up-to-date helps prevent any potential issues related to missed communications or notifications about the trademark applications.

The other options refer to different actions within trademark management, none of which pertain specifically to the CAR form's purpose of updating representation or address. Modifying the trademark application status, filing a new trademark application, or registering a new trademark involve different forms and procedures within the USPTO framework.