U.S. federal trademark · Serial No. 79157630 · Reg. No. 4975244
Consumables, in particular quartz wool filtration media used as a gas-permeable covering for reaction tubes of combustion apparatus which allows for the diffusion of gases into and out of the tubes
Closures for containers, not of metal, in particular gas-permeable pads in the nature of discs and plugs for covering a reaction tube of the combustion apparatus
Combustion apparatus for nitrogen analysis and parts thereof, in particular quartz glass containers for use as combustion and reduction reactors
Source: USPTO federal trademark records. Informational only, not legal advice. Status and details may lag the live USPTO database.