Drawing for CHEMICAL TESTING CORPORATION

USPTO serial 71606272

CHEMICAL TESTING CORPORATION

Reviewed by CopyMark Law Group

Reg. 0567932Status 900
Filing date
Status date
Registration date
Dec 16, 1952
Examiner
—
Law office
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This page summarizes the public USPTO record for this serial number, including owners, goods and services, and prosecution history.

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Owner

Goods and services

ClassDescriptionStatusFirst use
006BOILER FEED TREATMENT, IN THE NATURE OF A CHEMICAL WHICH PREVENTS BOILER SCALE AND INHIBITS CORROSIONEXPIREDSep 12, 1950

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Prosecution history

DateCodeEventWhat it means
Sep 20, 1993EXRGEXPIRED SEC. 9—
Dec 16, 1972REN1REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)—

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