As old as Brittany Spears.
Richard L. Spencer, lead singer for The Winstons, stumbles into a thread about one of the most sampled breaks in history and comments on the fact that neither he nor drummer Greg Coleman were even aware of the usage.
Folks have speculated for a while that they never saw royalties, but to not know that your work was practically the cornerstone for a large chunk of electronic music is just insane. At least James Brown and Clyde Stubblefield were aware that they'd been screwed. (Wonder if James Brown paid himself back when he enlisted Full Force to jack "Funky Drummer" on I'm Real?)