Cadbury Schweppes Pty Ltd v Effem Foods Pty Ltd

Cadbury Schweppes Pty Ltd (Cadbury) brought proceedings against Effem Foods Pty Ltd (Effem) concerning alleged breaches of Cadbury's trade mark rights in the word "CHUNKY" and its associated get-up. Cadbury claimed that Effem's marketing and sale of chocolate bars under the name "CHUNKY" infringed its registered trade mark and constituted passing off. The matter was heard in the Federal Court of Australia.

The primary legal issues before the court were whether Effem's use of the word "CHUNKY" in relation to its chocolate bars constituted an infringement of Cadbury's registered trade mark, and whether Effem's conduct amounted to passing off. Specifically, the court had to determine if there was a likelihood of deception or confusion among consumers as to the origin of Effem's product, given Cadbury's prior use and registration of the "CHUNKY" trade mark and its associated trade dress.

Justice Terry Williams found that Effem had infringed Cadbury's trade mark. His Honour reasoned that the use of the word "CHUNKY" by Effem on its chocolate bars was identical to Cadbury's registered mark and was used in relation to goods for which the mark was registered. The court concluded that there was a real and substantial risk of deception and confusion in the marketplace, leading to an infringement of Cadbury's exclusive rights. The claim for passing off was also upheld on similar grounds, finding that Effem's actions had created a misleading impression of association with Cadbury's well-established product.