On Monday, a filing with the US Securities and Exchange Commission revealed that Apple has extended its agreement with Liquidmetal Technologies, giving Apple an exclusive license to all of the company’s Intellectual Property for a further two years.

Apple Insider reports that the extension gives Apple access to any acquisitions, inventions or advancements made by Liquidmetal until February 2014, for use in its “consumer electronic products”. It is expected that Apple won’t launch the rumoured Liquidmetal iPhone this year, but the new agreement suggests that Apple could reveal such device at some point before 2014.

Apple originally made a Master Transaction Agreement (MTA) with Liquidmetal in August 2010, which ended in February this year. The amended document extends the filing to 5 February 2014.

In April, it was rumoured that Apple was planning to use Liquidmetal, a lightweight but durable alloy, in its next iPhone. However, that rumour also suggested that the iPhone would be launched at WWDC 2012, but it made no appearance at the event last week.

One of the inventors of Liquidmetal has said that Apple is likely to use the technology in a ‘breakthrough product’.