THE KEYSTONE OF FILTER QUALITY
USPTO Trademark Record · Serial No. 72312204
Trademark details
It was initially claimed by Keystone Filter Corporation on 19681114.
That brand applies to the following goods and services:FILTER MEDIA IN GENERAL AND PLEATED SHEET FILTER MEDIA AND OTHER FILTER COMPONENTS, SUCH AS END CAPS, CENTER TUBES, HOUSINGS, CARTRIDGES AND FILTERS IN PARTICULAR.
You can learn more about that trademark on the USPTO website: View the USPTO record
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