CIRCLEBOOK Trademark
Serial Number: 77410490 • Registration: 4029097
Trademark Classes
Owner Contact Info
Trademark Details
Filing Date
March 1, 2008
Registration Date
September 20, 2011
First Use Anywhere
January 1, 2000
First Use in Commerce
February 17, 2011
Published for Opposition
November 3, 2009
Cancellation Date
April 27, 2018
Goods & Services
Providing online educational information in the fields of university-level mathematics and physical sciences using the circle and circular forms