The United States Patent and Trademark Office (USPTO) has published the trademark application "FOUR MAG" (Application No. 99492398) for a 30-day opposition period. The application, filed on November 12, 2025, seeks to register the mark for use with food supplements, health food supplements, and mineral food supplements. The publication date, marking the start of the opposition period, is March 22, 2026.

This publication is a standard procedural step in the trademark registration process. Interested parties who believe they may be harmed by the registration of this mark have until April 21, 2026, to file an opposition. For companies in the food supplement and pharmaceutical sectors, this indicates a new mark is progressing towards registration, which may impact their own branding or marketing strategies. No immediate compliance actions are required for entities other than potential opposers.