When entering the U.S. as a national phase filing, which two items must be submitted?

When entering the U.S. as a national phase filing under the Patent Cooperation Treaty (PCT), the correct items that must be submitted include a copy of the international application and the national filing fee.

This requirement is rooted in the procedures set forth by the United States Patent and Trademark Office (USPTO) for national phase entries. The copy of the international application is necessary to ensure that the patent examiners have access to the complete details of the invention as originally submitted. The national filing fee is a critical component because it secures the processing of the application within the U.S. legal framework.

In contrast, the other choices outline elements that do not align with the specific requirements for a national phase entry under U.S. patent law. For instance, submitting the international filing fee and claims does not encompass the complete submission necessary for national phase entry; both the application and the fee must be present. The requirement for a declaration and translations applies in certain contexts but is not mandatory for all national phase filings. Lastly, a provisional application and patent claim are not part of the national phase filing process, as a national phase filing specifically relates to non-provisional and already filed international applications. By comprehensively understanding these requirements, one can successfully navigate the patent