U.S. federal trademark · Serial No. 75978127 · Reg. No. 2263797
printed matter, namely, books, newsletters, magazines, pamphlets, brochures, printed instructional materials, printed educational materials, and manuals, all in the field of mathematics
prerecorded video tapes and prerecorded audio tapes
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.