Depends on your contract, graphic designers charge different prices for different rights to their work. What you are asking for is full transfer of rights, including all intelectual and moral rights.
This is the sort of thing you need to have negotiated before you begin the job because it affects how the job is executed and whether or not the designer will bother to take the job or not.
In essence this boils down to a few things:
- Why would you want to even begin doing that
- YourYou're essentially asking the designer to dissasociate themselves from the design. The designer can no longer use you as a reference. This may be more than enough for a designer not to bother as you do not grow his chances of getting new work.
- In fact youryou're not buying a logo youryou're buying either a template system for a family of logos or your buying a tutorial into logo design and should be charged appropriately.