Britain's Autocar reports that PSA's luxury arm filed the application this week, in preparation for its halo model to arrive around the turn of the decade - likely between 2018 and 2021.
The company even took to the streets of Paris in the bright green concept last year to gauge the public's reception to the boldly-styled coupe.
First revealed at last year's Geneva motor show, the DS E-Tense is an all-electric sports concept, powered by an electric drive system developing 300kW of power and 516Nm of torque.
It can sprint from 0-100km/h in 4.5 seconds, on its way to a top speed of 250km/h. Meanwhile, DS claims the E-Tense can achieve an all-electric driving range of around 310km between charges.
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