What must be included in a document to record an assignment at the PTO?

To successfully record an assignment at the United States Patent and Trademark Office (USPTO), a document must be presented that is in English and is either an original document or a certified copy. This requirement ensures that the document can be accurately assessed and understood by USPTO officials who may not be familiar with languages other than English. Submitting a certified copy of the original assignment helps maintain the integrity of the documentation and ensures that what is being reviewed is an official representation of the assignment.

The stipulation for English ensures consistency and clarity in the patent application process. Having either an original or a certified copy allows for verification without hindering the process with potential doubts about authenticity or accuracy that could arise from unverified copies.

While other options might seem relevant, they do not fulfill the core requirements set by the PTO. For instance, a digital signature is not mandated for an assignment to be recorded, nor is notarization a necessary step in the process, although it may enhance the document's authenticity. Additionally, addressing the document to the USPTO is not a formal requirement. The key focus is on the language used and the form of the document.