OMG, this is serious- Kardashian sisters are going to war to block her from cashing in on the family name !!

Just because Blac Chynas marrying a Kardashian doesnt mean she can get in the club -.According to docs obtained by TMZ ... Kim, Khloe, and Kourtneys companies are opposing Chynas request to trademark "Angela Renee Kardashian" -which she was trying to lock down for use while working in entertainment, and also on social media.Sisters are, saying if Chyna gets the trademark theyll "suffer damage including irreparable injury to their reputation and goodwill." they say Chyna is "deliberately seeking to profit from the goodwill and popularity" of the Kardashian name.-WTN