Former countries of the USSR, in order of independence

When the Russian Federation was declared, did it not claim sovereignty over Kazakhstan? I don't actually know. Did Kazakhstan declare independence from the USSR or from Russia? Or was it just a stateless former Soviet Oblast for a few days? I think that once Russia declared independence the Soviet Union was in effect dead. I'm sure it's not as if Politburo picked up and moved their offices to Almaty.

Anyway... just musing out loud since I'm too lazy to look it up right now.

... okay so I did look up a little bit. Apparently representatives in the "Soviet of Republics"... which succeeded the "Soviet of Nationalities" to become the last functioning legislative body of the Soviet Union... lasting only from October through December of 1991 and meeting inside the Kremlin in Moscow, voted to officially disband the Soviet Union on December 26th, 1991, 10 days after Kazakhstan declared independence and 14 days after Russia had. So... in theory the USSR continued to exist until then even though it had sovereignty over nothing, not even the office complex its sole remaining legislative body was meeting in.