When applying to register a trademark, you must select a "basis" for your application. Typically, your application is either "use based," meaning that you currently use the mark in commerce, or "intent-to-use," meaning that you do not currently use the mark in commerce, but have a good faith intent to do so in the near future. An intent-to-use application will undergo the same examination as a use-based application. The difference is, with an intent-to-use application, you must file a "Statement of Use" after the mark is approved in order for it to mature from an application into a registration.
You must file a Statement of Use within six (6) months of your mark being approved. However, you can file up to five (5) requests to extend the filing period for an additional six (6) months. Status Code 824 is triggered after you file a Statement of Use. It means that the the Examining Attorney has identified issues with the Statement of Use, has prepared a correspondence to you explaining the issues with the Statement of Use. You will have six (6) months to either correct all of the issues identified by the Examining Attorney or file an appeal with the Trademark Trial and Appeals Board. For more information on the Trademark Application Process in general, visit:
For intent to use forms, visit:
For the USPTO's Intent-to-Use Application Timeline, visit: