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..
to share – to copy, distribute and transmit the work
to remix – to adapt the work
Under the following conditions:
attribution – You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use.
share alike – If you remix, transform, or build upon the material, you must distribute your contributions under the same or compatible license as the original.
From ''http://en.wiki.x.io/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
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