Trademark Overview
On Tuesday, February 5, 1929, a trademark application was filed for L&N with the United States Patent and Trademark Office. The USPTO has given the L&N trademark a serial number of 71278903. The federal status of this trademark filing is EXPIRED as of Saturday, February 13, 2010. This trademark is owned by LEEDS & NORTHRUP COMPANY. The L&N trademark is filed in the Computer & Software Products & Electrical & Scientific Products category with the following description:
ELECTRICAL MEASURING INSTRUMENTS-NAMELY, ELECTRIC METERS AND INDICATORS, GALVANOMETERS, VOLTMETERS, AMMETERS, WHEATSTONE BRIDGES, POTENTIOMETERS, [ PERMEAMETERS, ] INDUCTANCE AND CAPACITY BRIDGES, INDUCTOMETERS, ELECTRIC TESTING SETS, ELECTRIC DECADE SETS, RESISTANCE STANDARDS, INDUCTANCE STANDARDS, CAPACITY STANDARDS, STANDARD CELLS, THERMOCOUPLES, ELECTRIC THERMOMETERS, RESISTANCE THERMOMETERS, PHOTOMETERS, PYROMETERS, CONDUCTIVITY CELLS, ION-CONCENTRATION CELLS; INSTRUMENTS FOR MEASURING AND INDICATING CONDUCTIVITY OF ELECTROLYTES, ION CONCENTRATION, FLOW OF FLUIDS, SPEED, FREQUENCY, AND COMPOSITION OF MIXTURES; GAS ANALYZERS; RECORDERS OF MAGNITUDES OF TEMPERATURE, HUMIDITY, FREQUENCY, SPEED, PRESSURE, CONDUCTIVITY, ION CONCENTRATION, RATE OF FLOW OF FLUIDS, ELECTRIC CURRENT, ELECTRICAL POTENTIALS, ELECTRICAL IMPEDANCE, [ TURBIDITY, ] PHOTO-ELECTRIC EFFECTS, AND COMPOSITION OF MIXTURES; AND RECORDING INSTRUMENTS CONTROLLED BY A MEMBER DEFLECTING IN RESPONSE TO THE MAGNITUDE TO BE R...
