Trademark Overview
On Saturday, March 14, 2026, a trademark application was filed for CALLIS OS with the United States Patent and Trademark Office. The USPTO has given the CALLIS OS trademark a serial number of 99702722. The federal status of this trademark filing is NEW APPLICATION - RECORD INITIALIZED NOT ASSIGNED TO EXAMINER as of Saturday, March 14, 2026. The CALLIS OS trademark is filed in the Education & Entertainment Services category with the following description:
Provision of information in the field of leisure activities, namely, services, Operating System Frameworks, online courses and training in the field of business, entrepreneurship, Real Estate, sales, and personal development.