What must be included in a Provisional Cover letter?

In the context of a Provisional Cover Letter, including the inventor's name and address is essential because it serves to identify the actual inventor(s) associated with the provisional application. This identification is crucial for determining ownership rights, establishing the date of invention, and facilitating communication regarding the application.

The inventor's details must be complete, specifying not just their names but also their current mailing address. This information is necessary for compliance with the requirements set forth by the United States Patent and Trademark Office (USPTO) and ensures that the application is linked to the correct individuals, which is important for any future patent proceedings.

While the other options may be relevant in the patent application process, they do not pertain specifically to the requirements of a Provisional Cover Letter. For instance, an assignee's name may not be required at the provisional stage since the provisional application is fundamentally about establishing the date of invention, which centers on the inventor. The application filing fee is of course necessary for the submission itself, but it doesn’t form part of the content of the cover letter. Lastly, the designation of prior art is typically more relevant to non-provisional applications where claims must be supported by disclosing the closest prior art. Thus, the correct item to include specifically in