What is an essential element of an application that must be submitted immediately with a Provisional Application?

When filing a Provisional Application for Patent, one of the fundamental requirements is the inclusion of the specification. The specification serves as a written description of the invention, detailing how it works and providing enough information for someone skilled in the art to understand and replicate the invention. This is crucial for establishing the technical foundation of the application and serves as a basis for any future non-provisional application that may be filed.

The specification must adequately describe the invention in sufficient detail and enable others to appreciate and carry out the invention, which is a key prerequisite for patentability. The absence of an adequate specification would compromise the effectiveness and validity of the provisional application, as it would fail to convey the necessary technical information.

In contrast, other options like a priority claim document or legal counsel documentation are not essential elements that must accompany a Provisional Application at the time of filing. While claims can be included, they are not strictly required for a Provisional Application, making the specification the primary and essential element that must be submitted immediately.