Trademark

International Trademark Law is a costly and long winded process - your client will need a specialist Lawyer/Attorney and deep pockets. A designer/originator also has rights to how a client uses that work for their business, it is one thing to design a logo for a local business for xxxx$, but a completely different matter if a client is going to the expense and trouble of TM or R for that logo.

At this post there are a couple of useful links to various online destinations for copyright questions.

Go to the USPTO web site do a search for the "Phrase". If it is available start the process on line it is very easy. Just follow the instructions.
Slydaug

Try here...
Trademarks - where to start

Jack Clements said:

Try here...
Trademarks - where to start

Click to expand...

Nice link.