Quote Originally Posted by ghostrider
Quote Originally Posted by gaigai
This is the best website for information about quilting and copyright. It will answer all your questions, and correct some of the misinformation that has already been posted here.

Actually, the best website for information on US copyright law is the US Copyright Office itself at http://www.copyright.gov/help/faq/. The site referenced in the quoted posting is opinionated and onesided. It is maintained by eBay sellers, not attorneys.
I agree! Always go to the US copyright site for accurate info.

If you intentionally copied someone's design, I would consider your quilt a derivative work. It would be appropriate to purchase the designer's pattern, even if you made changes to dimensions, borders, etc.