USPTO published trademark application TM99736831 for the mark "C4U" on April 1, 2026, filed March 31, 2026. The application covers Class 9 goods including electronic devices for detecting and locating objects within a certain distance using proximity sensors, proximity sensors themselves, and wearable electronic proximity sensors with embedded contact tracing software for distance measuring and alerting among wearers. The application is categorized as intent-to-use.

Trademark applicants and owners of similar proximity sensor technology marks should review this filing to assess potential conflicts with their existing intellectual property portfolios. The trademark registration process typically takes 12-18 months to finalization. No immediate compliance actions are required from non-applicants.