The graphic, being so simplistic and not carrying any trademark or other registrable intellectual property, is not covered by most countries' copyright laws.
The graphic is used so widely and freely and for long enough without any recorded incidence of anyone following up a copyright issue that even were it once considered copyright, a court is likely to consider it passed into public domain..
pa compartir – pa copiar, distribuir y comunicar públicamente la obra
pa remezclar – p'adautar la obra
Baxo les condiciones siguientes:
reconocimientu – Tienes de dar el créitu apropiáu, apurrir un enllaz a la llicencia ya indicar si realizasti dalgún cambéu. Puedes faelo de cualquier mou razonable ,pero non de manera que suxera l'encontu del autor pa ti o pal usu que faigas.
compartir igual – Si entemeces, tresformes o te bases nesti material, tienes de distribuir les tos contribuciones baxo la mesma llicencia o una compatible cola orixinal.
From ''http://en.wikipedia.org/wiki/Image:Rssicon_3614.gif'': RSS (file format) Icon ''Copyright'' is believed to be free on this: # The [http://blogs.law.harvard.edu/tech/rss#licenseAndAuthorship RSS Specification] itself is under copyleft according