Citation Codes Equivalent Citations citation codes Docket Number No. 24730. Attorney(S) Robert C. Walker, pro se. Theodore E. Smith, U.S. , Atlanta, Ga., for Judges James Plemon Coleman Benjamin Cornwell Dawkins See more information ... Smart Summary Please sign up to generate summary. Robert C. WALKER, Appellant, v. UNITED STATES of America, Appellee. PER CURIAM: By habeas corpus, this appellant challenged the duration of his sentence. The District Court denied relief. Before the case could be calendared and heard here the sentence expired. The case, therefore, is moot. Appeal dismissed.