"We have this morning filed our appeal on the London licence decision at Westminster Magistrates' Court", Uber said in a statement ahead of the Friday deadline.
Friday's filing is a short notification of Uber's intention to appeal rather than the detailed grounds. The first hearing on the issue is expected on December 11.
The Financial Times reports that an Uber representative stated the appeal had been submitted while "constructive discussions" with TfL continue.
Uber's appeal follows alleged talks between the firm's new CEO Dara Khosrowshahi and TfL commissioner Mike Brown.
"The courts now will consider the appeal from Uber and of course TfL will defend the decision they made", he said (via Reuters). "As our new CEO [chief executive] has said, we are determined to make things right", an Uber spokesperson said.
Transport for London (TfL) shocked the Silicon Valley firm last month by deeming it unfit to run a taxi service and refusing to renew its licence, citing its approach to reporting serious criminal offences and background checks on drivers. He has also apologized for the company's past behavior.
Previous to this, Khosrowshahi penned an open letter to London in the Evening Standard apologising for the mistakes that lead to Uber having its licence yanked.
Uber has been used by 3.5 million Londoners, developing a loyal fan base by offering convenience and lower prices than traditional "Black Cabs".
"While Uber had revolutionised the way people move in cities around the world, it's equally true that we've got things wrong along the way", he wrote.
It comes after TFL announced its decision not to renew Uber's license after it expired on 30th September. A petition launched by Uber to protest TfL's decision has gathered more than 800,000 signatures.
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