Originally Posted by pornlaw

If you never signed a work for hire agreement waiving your rights to the logo, it remains yours. You have however given them a non-exclusive license to use the logo.

First off, write them a letter informing them that they no longer have the right to use to logo for any purpose and that you are terminating the license effective immediately. Send it to them via certified mail return receipt, fax and email.

Once they get your letter, they may seek out a lawyer and then come back to you with a reasonable offer to settle and buyout the rights.

If they do not respond, file for copyright protection on the logo. This is something you will need a lawyer for.

Once you have the registration from the copyright office, you can proceed with litigation.

How much are you looking to get for it ?