U.S. federal trademark · Serial No. 73426372 · Reg. No. 1289513
Gemstone Matching Guides Featuring Simulated Grade Range Standards Effected by a Reflective Metal Foil Embossed to Create Prism-Like Steps Operating in Combination with Optical Filters
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.