U.S. federal trademark · Serial No. 85488155 · Reg. No. 5500339
diffraction grating; Scientific apparatus, namely, spectrometers and parts and fittings therefor; polychromator; Laboratory equipment, namely, monochromator, spectroscopes; Opto-electronics devices, namely, lasers not for medical use, optical demultiplexers, optical switches; Laboratory apparatus and instruments, namely, spectro photometer, biochemical analyzer; and Measuring or testing machines and instruments, namely, film thickness meter, colorimeter, display evaluate equipment, refractometer, optical source evaluate equipment
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.