Once you have activated something and placed it into the library it is yours forever (unless you refund it). You then have them as an item in your inventory along with your trading cards and other steam objects. In order to sell or trade games you would need to buy them as gifts. Each application stores the product key in a different location. Browse the folders and files of the CD for the license or product key. Right-click the CD drive under the list of available drives and click “Open.” The contents of the CD are displayed. You will see the Product Code in this window.
Close it by clicking Origin in the menu bar and selecting Exit, then open the client to log in again.
