Peckish had a good answer to the situation. I think Northcutt was very nice to offer that option - Once you download the pattern, you can do whatever you want with it - however, that won't be the case for all websites.
Just because there is no copyright symbol on it doesn't mean that there isn't a copyright. I teach elementary school technology and the children learn that anytime something is created (no matter what or who did the creating) it has a copyright on it. It is your personal creative work. If someone else takes it or copies it, they must ask permission to use it unless you have clearly stated on your work that they may copy it and how they might use it. I am glad that the person who started this thread asked for permission. She did exactly what she should do.