Michael Maggs wrote:
Generally, these are straight copyvios and can be speedily deleted. There is no general defence to copyright infringement of a printed design that the design happens to appear on a can or a label.
See http://commons.wikimedia.org/wiki/COM:CB#Product_packaging
Uncertainty can arise, though, where a design is old or is very similar to an old design (eg the Marmite jar).
Or for design that consists only of text, such as the brand name.
Ciao Henning