Copyright?

[Kadabra]

well i make card faces for example i put things on them such as a donkey now the question..... is it leagel for me to sell these cards even though they are on bicycle cards and the backs are clearly un changed

 

[The Dark Angel]

According to the United States Playing Card Company's website:

BICYCLE, BEE, AVIATOR, HOYLE, CLUB SPECIAL, the Rider Back Design, the Diamond
Back Design, the Goddess of Liberty, and other brand names, card back designs and
designs of Aces and Jokers used on this site are registered trademarks of The United
States Playing Card Company in the United States and other countries.