File:Duralex logo.png

Summary
trademarked logo used according to fair use

source: http://www.duralex.fr via https://fr.wikipedia.org/wiki/Fichier:Duralex_logo.svg

Though this image is subject to copyright, its use is covered by the U.S. fair use laws because:
 * 1) It illustrates an educational article about the entity that the logo represents.
 * 2) The image is used as the primary means of visual identification of the article topic.
 * 3) It is a low resolution image, and thus not suitable for production of counterfeit goods.
 * 4) The logo is not used in such a way that the reader would be confused into believing that the article is written or authorized by the owner of the logo.
 * 5) It is not replaceable with an uncopyrighted or freely copyrighted image of comparable educational value.