Using UE4 animated logo in a trailer

So how about overall logo usage? For example in the Kickstarter campaign, on our website etc.? We want people to know, that we are using UE4 to develop our game. For most cases, you (Epic) should too. What is the time frame for the optional trademark license? We would like to release the trailer in 4 weeks. Maybe there is someone in the marketing department we can approach directly on this?