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..
atsaucoties – Tev ir jānorāda autors, saite uz licenci un to, vai veiktas kādas izmaiņas. To var darīt jebkādā saprātīgā veidā, bet ne tādā, kas norādītu, ka licencētājs atbalsta tevi vai veidu, kā tu izmanto šo darbu.
nemainot licenci – Ja tu miksē, pārveido vai izmanto materiālu, tev savs devums jāpublicē ar to pašu vai saderīgu licenci kā oriģināls.
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