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

Rubik's Cube is for everyone

Rubik's Cube Owner Loses EU Trademark Protection For Iconic

CJEU rules against Rubik's Cube shape trade mark

EU COURT RULES ON THE SHAPE OF RUBIK'S CUBE AS A TRADEMARK

Rubik's Cube trademark puzzle solved by EU court

What KitKat and Rubik's Cube have in Common – MSC Intellectual

Rubik's Cube shape not a trademark, rules top EU court - BBC News

The Rubik's Cube Patent - Intellectual Property - Trademark

Rubik's Cube owner loses EU trademark for iconic puzzle's shape