Complex sentence: The band had, at one point, planned to name the album after the confection, but the bar's manufacturer, the Cardinet Candy Co., refused permission for use of the name, and the album was retitled.
Split into simpler sentences: The band had, at one point, planned to name the album after the confection. When the bar's manufacturer, the Cardinet Candy Co., refused permission for use of the name, however, the album was retitled.