Blac Chyna's stuck being just Blac Chyna.

Blac Chyna and Rob Kardashian are not getting married.Kim, Khloe and Kourtney were successful in blocking Blac's petition to own the rights to the name Angela Renee Kardashian. 

We broke the story ... the sisters didn't want Blac to profit off the family name -- even if she did marry Rob -- so they filed legal docs to stop it. They claimed it created confusion in the marketplace. 

Chyna never responded ... and now she's taking the L. 

GIVE US TIPS GIST, GOSSIP COMMENTS ................. THOUGHTS? ... spill TEA.... gently Easy on Shade #jaiyeorie