EULER'S DISK Trademark
Serial Number: 77863965 • Registration: 3885050
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
November 3, 2009
Registration Date
December 7, 2010
First Use Anywhere
June 1, 1996
First Use in Commerce
June 1, 1996
Published for Opposition
September 21, 2010
Goods & Services
Educational toy for the purpose of the demonstration of alternative energy sources; Educational toys for teaching math principles to children, namely, manipulative blocks for displaying patterns and groupings; Mechanical action toys