| L&N LEEDS & NORTHRUP COMPANY
71278903 05 Feb 1929 | on 13 Feb 2010 | ELECTRICAL MEASURING INSTRUMENTS-NAMELY, ELECTRIC METERS AND INDICATOR... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods 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 RECORDED | | | L & N LEEDS & NORTHRUP COMPANY
71266600 18 May 1928 | on 12 Dec 2009 | [ ELECTRIC FURNACES, OVENS, AND HEATERS; FOR RESISTORS AND ELECTRIC HE... Class 021 Class 021 Houseware and Glass Products LN | | | ELECTROMAX LEEDS & NORTHRUP COMPANY
71522797 22 May 1947 | on 16 May 2009 | AUTOMATIC, ELECTRICALLY OPERATED CONTROLLING, INDICATING AND SIGNALLIN... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods AUTOMATIC, ELECTRICALLY OPERATED CONTROLLING, INDICATING AND SIGNALLING APPARATUS FUNCTIONING RESPONSIVELY TO THE FLUCTUATIONS OF A VARYING MAGNITUDE OF A CONDITION SUCH AS TEMPERATURE, PRESSURE, ELECTRICAL CONDUCTIVITY, ELECTRICAL IMPEDANCE, ELECTRIC CURRENT, ELECTRIC VOLTAGE, OR THE LIKE, FOR USE IN CONNECTION WITH INDUSTRIAL EQUIPMENT AND APPARATUS SUCH AS DRIERS, OVENS, FURNACES, HEATERS, BATHS, POTS, KETTLES, STILLS, DIES, PLATENS, PRESSES OR THE LIKE, FOR THE PURPOSE OF INCREASING, DECREASING, AND MAINTAINING AT A PREDETERMINED MAGNITUDE THE VARIABLE CONDITION ENCOUNTERED IN CARRYING OUT OF INDUSTRIAL PROCESSES WHERE THE VARIABLE MAGNITUDE OF THE CONDITION IS TO BE MAINTAINED WITHIN PREDETERMINED OPERATING LIMITS, AND FOR PARTS OF AND ACCESSORIES FOR SUCH APPARATUS, CONTROLLERS, AND CONTROLLERS COMBINED WITH SIGNALING MEANS | | | SPECTRAY LEEDS & NORTHRUP COMPANY
72251637 03 Aug 1966 | on 21 Feb 2009 | RADIATION PYROMETER Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods RADIATION PYROMETER | | | BATESTER LOLLY POP LEEDS & NORTHRUP COMPANY
72257577 31 Oct 1966 | on 26 Sep 2008 | TESTING EQUIPMENT-NAMELY, MOLTEN METAL SAMPLER,TESTING EQUIPMENT-NAMEL... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods TESTING EQUIPMENT-NAMELY, MOLTEN METAL SAMPLER | | | HY-THERM LEEDS & NORTHRUP COMPANY
72216595 15 Apr 1965 | on 19 May 2007 | ELECTRICAL INSTRUMENTS, SYSTEMS, AND COMPONENTS-NAMELY, THERMAL TRANSD... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods ELECTRICAL INSTRUMENTS, SYSTEMS, AND COMPONENTS-NAMELY, THERMAL TRANSDUCERS AND SENSORS, CALORIMETERS, RADIOMETERS, RESISTANCE TEMPERATURE SENSORS, TEMPERATURE CONTROLLERS, THERMAL INSTRUMENTATION SYSTEMS, AND TEST STRUCTURES CONNECTED THEREWITH | | | PH PEN LEEDS & NORTHRUP COMPANY
73566172 31 Oct 1985 | on 17 Mar 2007 | PH METERS,PH METERS Class 009 Class 009 Computer & Software Products & Electrical & Scientific Products "PH" | | | POLYPAK LEEDS & NORTHRUP COMPANY
72455690 26 Apr 1973 | on 08 Oct 2005 | VOLUMETRIC DRY FEEDERS AND WEIGHERS,VOLUMETRIC DRY FEEDERS AND WEIGHER... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods VOLUMETRIC DRY FEEDERS AND WEIGHERS | | | TESTIP Leeds & Northrup Company
72174967 13 Aug 1963 | on 23 Apr 2005 | Electrical Testing Device for Expendable Immersion Thermocouple Temper... Class 026 Class 026 Lace, Ribbons & Embroidery and Fancy Goods Electrical Testing Device for Expendable Immersion Thermocouple Temperature Measuring Apparatus | | | PURIFAX LEEDS & NORTHRUP COMPANY
72387025 22 Mar 1971 | on 08 Nov 2003 | CHEMICAL APPARATUS-NAMELY, VESSELS THAT RECEIVE BOTH SLUDGE AND A CHEM... Class 023 Class 023 Yarns and Threads CHEMICAL APPARATUS-NAMELY, VESSELS THAT RECEIVE BOTH SLUDGE AND A CHEMICAL OXIDIZING AGENT TO PROMOTE THE OXIDATION OF THE SLUDGE DURING A WASTE TREATMENT PROCESS | |