Blac Chyna's attempt to trademark Kardashian name blocked

Rob Kardashian Blac Chyna Dream Getty
It has become increasingly unclear whether Blac Chyna and Rob Kardashian's proposed marriage will go ahead (Getty)

Video vixen Blac Chyna has failed to put a trademark on the name Angela Renee Kardashian - the name she would legally have if she was to marry lesser-known Kardashian sibling, Rob.

The pair, who have a child, got engaged at the end of last year and were expected to marry in July 2017 - but it was confirmed in February that their engagement had been called off in the midst of relationship troubles.

A few days ago, Blac Chyna posted a series of Snapchats of her and Kardashian sharing a kiss - though that was on April Fools' Day, so there is doubt that actually means the marriage is back on.

Blac Chyna's attempts to trademark the Kardashian name back in December, when marriage was first on the cards, were opposed by Kardashian sisters Kim, Khloe and Kourtney - even if she was to marry into the family.

They claimed that the current Kardashian clan would "suffer damage including irreparable injury to their reputation and goodwill" should Blac Chyna trademark her own version of the name.

Their lawyers also suggested Blac Chyna was "deliberately seeking to profit from the goodwill and popularity" of the Kardashian name - and their attempted block appears to have worked, with Blac Chyna's request reportedly blocked.

The rejection of the trademark has led some to believe Blac Chyna's marriage to Rob Kardashian has been permanently called off.