What does the USPTO issue at the conclusion of the Appeal Process?

At the conclusion of the appeal process in front of the United States Patent and Trademark Office (USPTO), the decision issued is specifically from the Appeal Board. This could arise in various contexts, such as an appeal from a rejection by an examining authority, where the applicant contests the examiner's decision. The Appeal Board reviews the case and issues a written decision that either affirms or reverses the examiner's initial conclusion regarding the patent application.

The Appeal Board’s decision is critical because it serves as the final administrative determination on the matter before being able to take further legal action, if necessary, such as seeking judicial review. Thus, receiving an Appeal Board decision is a fundamental step in the patent prosecution process when an applicant chooses to contest a rejection.

Other options do not directly relate to the appeal process. A trademark registration certificate pertains only to registered trademarks and is not relevant in the context of patent applications. A warning of infringement does not come from the appeal process but is related to potential legal disputes after a patent is granted. Lastly, a patent grant or rejection notice reflects decisions made during initial examination rather than the appellate stage. Hence, the correct answer focuses on the decision specifically rendered by the Appeal Board.