Which section would provide details on ownership updates?

The correct answer is found in Section 505.02, which specifically addresses updates to trademark ownership. This section details the procedures that need to be followed when there is a transfer or change in the ownership of a trademark, ensuring that the records at the United States Patent and Trademark Office accurately reflect current ownership status.

Understanding this is crucial for trademark owners and applicants because maintaining accurate ownership records is essential for protecting their trademark rights and ensuring that any legal rights associated with the trademark remain enforceable.

The other sections mentioned do not specifically focus on ownership updates. Therefore, they would provide insights into different aspects of trademark registration and maintenance but would not guide users on how to properly update ownership information. This makes Section 505.02 the relevant and correct source for anyone needing information about changes in trademark ownership.