I just ''traded in'' my old 2014 Ford Focus to a new 2017 Ford Focus. Does this mean both my License Plates on the (old) car are No good?

I just ''traded in'' my old 2014 Ford Focus to a new 2017 Ford Focus. Does this mean both my License Plates on the (old) car are No good?

No, you are entitled to recover the remaining months of registration and license fees. You can in most states remove the plates and keep them if you buy a second car. You can't put then on the new one it most likely will need to be "born" with it's own plate.

Different states have different laws regarding ownership of plates. We're not clairvoyant and have no clue what state (or country) you're in.