When the court announced in January that it would be hearing the cases out of Kentucky, Michigan, Ohio, and Tennessee, it set a schedule requiring the couples or, in one case, widower, to file their briefs with the court by Friday.

The first brief whose filing was announced on Friday was in a pair of cases out of Ohio, both of which deal with recognition of marriages previously granted to same-sex couples in other states. The brief’s filing was announced at 10 a.m.

Shortly thereafter, the couples in Tennessee — also seeking recognition of their marriages granted elsewhere — filed their brief, as did couples in Kentucky seeking the right to marry and the right to have marriages granted elsewhere recognized.

A bit before 11:30 a.m., the final brief came in from the Michigan couple seeking to marry in that state.

The states’ briefs defending the bans will be due in a month, by March 27.