Rubik's Cube shape is not a trademark, EU rules

The 3D brainteaser invented in 1974 by Hungarian Erno Rubik is popular among young and old, with more than 350m cubes sold worldwide

Padima Notes - Padima

Rubik's Cube makers square up in trademark battle

Game over for Rubik's Cube: shape not protected as a trademark

Rubik's Cube - Wikipedia

Rubik's Cube puzzled after losing EU trademark battle, Toys

Rubik's cube - latest news, breaking stories and comment - The Independent

Rubik's Cube shape is not a trademark, EU rules

EUIPO Board of Appeal invalidates 3D Rubik's cube mark

Rubik's cube - latest news, breaking stories and comment - The Independent

Rubik's Cube puzzled after losing EU trademark battle, Toys

The business week (7-11 November 2016) in an infographic

Rubik's Cube firm left puzzled after losing EU trademark