The Law on Copyright
When someone buys a painting, they only own the painting - not the copyright. The painting becomes their property but the copyright remains with the artist. Buying a painting does not buy the right to reproduce it or profit from it in any way. The artist does not need to ask the owner of the original for permission to reproduce or license his work. After the death of the artist, the copyright transfers to his heirs and is theirs for 50 years before it passes into the public domain.