SK is a trademark. Serial number of that application is 74064195.
It was initially claimed by Schmidt, Kranz & Co. GmbH on 19900530.
That brand applies to the following goods and services:goods made of metal or predominantly made of metal; namely, manually operated valves, pressure tanks, couplings, adapters, pipe connections and parts therefor, pipe coupling parts, pipes and fittings therefor, for use in transporting or containing liquids and/or gases; non-return shutters and vents, rupture discs and rupture disc holding units, reinforced flexible pipes and high pressure hoses for industrial use, drain plugs; namely, discharge or delivery screws for use in the chemical, mining,, valves, parts of machines; spring discs, generators and pumps not for vehicles; namely, piston pumps, differential piston pumps, centrifugal pumps, rotary pumps, high and very high pressure pumps, hydraulic pumps, feed pumps, pumps for high pressure pressing, cementing pumps, conveying pumps, pumps for conveying chemical and/or corrosive agents, pressure amplifying pumps, high performance pumps, chromatography pumps, mining pumps, polyurethane pumps, multi-component pumps; compressors for machin, manually operated tools; namely, tools for the abrading and adjusting of tubes and tubing and connections thereof; hand operated pumps for use in the chemical, mining, machining, construction and nuclear industries and in industrial applications in other industries involving handling of liquids and gases, automatic valves for use in the chemical, mining, machining, construction and nuclear industries and in industrial applications in other industries involving handling of liquids and gases; control pumps for use in the chemical, mining, machining, construction and nuclear industries and in industrial applications in other industries involving handling of liquids and gases; control apparatus and appliances; switching apparatus and appliances; regulating apparatus and appliances; monitoring apparat, filters for oil, water, emulsions and other liquids as well as for gases and air; in particular, filling, ventilating, high pressure and air-intake filters; non-return valves for high pressure boilers, equipment for the movement of pumps; i.e., manually or mechanically operated carts.
Currently that trademark is represented by trademark attorney(s): Charles W. Grimes.
You can learn more about that trademark on the USPTO website:
View the USPTO record