Trademark Overview
On Monday, July 10, 2000, a trademark application was filed for LIGHTMASTER with the United States Patent and Trademark Office. The USPTO has given the LIGHTMASTER trademark a serial number of 76088737. The federal status of this trademark filing is ABANDONED - FAILURE TO RESPOND OR LATE RESPONSE as of Thursday, September 19, 2002. This trademark is owned by Grasslin Controls Corporation. The LIGHTMASTER trademark is filed in the Computer & Software Products & Electrical & Scientific Products category with the following description:
Lighting controls for commercial, industrial and institutional applications The product comprises a family of units consisting of various models and voltages The basic function is to control lighting circuits (indoor and outdoor building lighting, parking lot lights, sign lights, etc)by sensing the actual light level - the controller turns on the lights if the actual light level is below the setting of the controller (dark) and off if the actual light level is above the setting (light) The controller is mounted inside the building or electrical box with the sensor mounted typically outside the building One version of the unit incorporates an integral time clock function to allow the lights to be turned off prior to daylight
