TULSA - A federal judge struck down Oklahoma's constitutional ban on same-sex marriage in January, and the appeal filed by the Tulsa County Court Clerk is on the fast track in the 10th Circuit Court of Appeals.
Oral arguments in the appeal have been scheduled for April 17 in Denver; a second, similar case from Utah is slated to be heard April 10.
U.S. District Judge Terence Kern ruled the state's ban violated the 14th Amendment's guarantee of equal protection under the law for no rational reason.
Another judge in Utah struck down that state's ban in December, and since Kern's ruling, a federal judge in Texas struck down the ban there, and a Tennessee judge ordered that state to recognize three same-sex marriages while a case on the matter proceeds there.
Tulsa County Clerk Sally Howe Smith filed the appeal to Kern's ruling, which he issued after she denied a lesbian couple a marriage license.
Another aspect of the case is Oklahoma's refusal to recognize same-sex marriages conducted where such unions are legal.
Oklahoma does recognize the marriage of first cousins, legal in some states, though they are illegal under the state's laws.