Australian Climate Exchange Ltd v Chicago Climate Exchange Inc

The Australian Climate Exchange Ltd (ACE) sought to register the trade mark "AUSTRALIAN CLIMATE EXCHANGE" in Australia. The Chicago Climate Exchange Inc (CCE) opposed this application, arguing that ACE had not used the trade mark prior to CCE's priority date. The dispute concerned the application of Australia's convention priority provisions, specifically sections 29 and 225 of the relevant Act, which allow an applicant to claim priority based on an earlier application filed in a Convention country.

The central legal issue before the court was whether ACE could validly claim priority for its Australian trade mark application based on an earlier filing date in the United States. This involved determining the effect of CCE's claim of priority under section 29, which allows a claim for priority within six months of an initial application in a Convention country, and the operation of section 225, which addresses the equivalence of applications between Convention countries under treaties. The court was required to ascertain the effective priority date for ACE's application and whether CCE could establish prior use of its trade mark in Australia before that date.

The court reasoned that the convention priority provisions, as outlined in sections 29 and 225, allow an applicant to claim an earlier filing date, which then becomes the relevant priority date in Australia for all purposes except renewal. In this instance, ACE's claim for priority under section 29, based on its earlier US application, meant that its effective priority date in Australia was established by that earlier filing. Consequently, for CCE to succeed in its opposition under section 58, it needed to demonstrate use of the "AUSTRALIAN CLIMATE EXCHANGE" trade mark in Australia prior to ACE's claimed priority date, which was approximately six weeks before ACE's Australian filing date.