U.S. federal trademark · Serial No. 86978634 · Reg. No. 5033261
A feature of bowls, namely, a sealing feature that creates a pressure seal between the bowl and a surface, that can be selectively activated to prevent removal of the bowl and deactivated to remove the bowl from the surface
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.