Which items must be included to claim foreign priority under Section 119?

To claim foreign priority under Section 119, it is essential to include a claim set and foreign application details. Section 119 allows applicants to rely on their earlier-filed foreign applications to establish an earlier filing date for subsequent applications in the U.S. To do this effectively, the applicant needs to provide specific information that directly links the U.S. application to the foreign application.

The claim set is vital because it defines the scope of what is being claimed and helps establish the specific invention that is the subject of the foreign application. Including the details of the foreign application, such as the filing date, application number, and country, is equally critical, as it ensures that the U.S. application can properly reference the earlier filing, maintaining the priority date.

Other elements, such as a disclosure statement or an inventor's biography, are not required for the priority claim under Section 119. Therefore, the emphasis on both the claim set and the necessary foreign application details makes this choice the correct one for fulfilling the legal requirements for claiming foreign priority.