U.S. federal trademark · Serial No. 75340232
namely, precious metal testing kits for home use; gold testing kits; said kits including reagents for gold testing, namely, a series of solutions of muriatic and nitric acids to identify 10K, 14, 18K, and 22K gold; silver testing kits; a series of reagents to identify the purity of the silver; a volcanic rock test stone for use as a testing site; and, permanent magnets to test for presence of magnetically attractable metals
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.