"Opposition No. 91195461"(PDF). UNITED STATES PATENT AND TRADEMARK OFFICE. 31 December 2012. Archived(PDF) from the original on 24 January 2013. Retrieved 23 January 2013.
"Opposition No. 91195461"(PDF). UNITED STATES PATENT AND TRADEMARK OFFICE. 31 December 2012. Archived(PDF) from the original on 24 January 2013. Retrieved 23 January 2013.