The name of the business had to change it's name because copyright laws.
How do you find a business that no longer may exist?
Have you tried web yahoo or Google web searches for the old name of the company? If the company had a website, chances are that information is available, including lawsuits prompting a name change.
Good luck with your search.
How do you find a business that no longer may exist?
This information is always available from the secretary of states office in the state the business once existed.