SIGMA-TEK - Trademark Information

The SIGMA-TEK trademark was assigned a Serial Number #73439228 – by the United States Patent and Trademark Office (USPTO). Trademark Serial Number is a unique ID to identify the SIGMA-TEK mark in USPTO. The SIGMA-TEK mark is filed in the category of Electronic Machines. The legal correspondent for SIGMA-TEK trademark is SANFORD E WARREN JR, GARDERE WYNNE SEWELL LLP, 1601 ELM ST STE 3000, DALLAS, TEXAS UNITED STATES 75201 Domestic Representative - Not Found Prosecution History Date Description Proceeding Number Apr. 14, 2007 CANCELLED SEC. 8 (10-Y . The current status of the SIGMA-TEK filing is Registration cancelled because registrant did not file an acceptable declaration under Section 8..

Based on Sigma Tek, Inc., the SIGMA-TEK trademark is used in the following business: a Full Line of Aircraft Navigation and Control Instruments-Namely, Flight Instruments-Namely, Horizon Gyroscopes, Directional Gyroscopes, Flight Directors, Attitude Director Indicators, Horizontal Situation Indicators, Air Speed Indicators, Vertical Speed Indicators and Encoding Altimeters; Engine Instruments-Namely, Engine Gauges, Engine Instrument Clusters, Cluster Modules, Manifold Pressure Gauges, Fuel Pressure Gauges, Tachometers and Syncroscopes and Parts Therefor; Radio Controls-Namely, Very High Frequency Navigation, Very High Frequency Communication, High Frequency Communication, Automatic Directional Finder, Automatic Temperature Control Transponders, Weather Radar and Omni Bearing Selectors; and Audio Amplifiers-Namely, Audio Panels, Interphone Amplifiers, Isolation Amplifiers, and Loudspeaker Amplifiers.

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