PQ
USPTO Trademark Record · Serial No. 71477618
Trademark details
It was initially claimed by PHILADELPHIA QUARTZ COMPANY on 19441215.
That brand applies to the following goods and services:((SILICATE OF SODA AND SILICATE OK POTASH,))SODIUM SILICATE AND POTASSIUM SILICATE EITHER ALONE OR IN ADMIXTURE WITH OTHER CHEMICALS, USED FOR CLEANSING FIBRES, METALS, CERAMICS, WOOD AND THE LIKE.
You can learn more about that trademark on the USPTO website: View the USPTO record
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