sorry you are all wrong there is a lot to a copyright you can write it on a piece of papaer that is what it is worth i learned the hard way.
i had a pattern i did as all of you said when i saw my pattern for sale in a store i tried to sue
end of story they wone i did not have a registered copy right if you truely want a copy right consult an attorney and get it registered with the fedral goverment.
you are then protected it will cost about 4 thousand when all is said and done you copy right will have to be specified how long it will last usally about 10 years.
good luck i wish i had gone through all the steps to my stuff