This information was not written by me but I found it when I was researching the legalities of selling my quilts.
Quilting & Knitting And Copyright Law
The link below has a lot of information regarding quilting, licensed fabric and copyright and what you can and cannot sell. It is very useful information when someone comes along and tells you that a project that you made from a pattern in their book can't be sold. YES, it can, it's your personal item and you have the right to sell your personal stuff. Read and enlighten and educate yourself.