It was a record label, they just had a bigger label distribute their albums, it stopped existing after Flashpoint (and the Flashpoint singles) was released.
So it only lasted 20 years essentially since there was no Rolling Stones Records anymore when they signed with Virgin.
Rolling Stones Records died twenty years ago. For the past twenty years, they have never used "Rolling Stones Records." Musidor continues to slap the logo on product and Promotone continues to control the copyrights but Rolling Stones Records did not survive the Columbia contract.