Legal Question in Intellectual Property in California

Assuming this is your original image, you may have a very good lawsuit for copyright infringement as well as trademark and/or trade dress infringement if Home Depot sells products similar to yours. If the tables were turned and you had filched an image from Home Depot's website, you would receive a letter from a lawyer demanding several thousand dollars in compensation. You should do the same (except you would demand much more money, after your investigators photograph the sign in numerous Home Depots).. You might want to register your image with the U.S. Copyright Office as soon as possible which would increase the damages owed by future infringers. Watch out for legal time limits.