Drawing for DOWELL

USPTO serial 71549137

DOWELL

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Reg. 0542155Status 900
Filing date
Status date
Registration date
May 8, 1951
Examiner
Law office
FILE DESTROYED

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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
103CHEMICAL AND ENGINEERING SERVICES RENDERED IN CONNECTION WITH THE TREATMENT OF WELLS-NAMELY, ACIDIZING, CEMENTING, PLASTIC PLUGGING, PARAFFIN REMOVAL AND SURVEYING WITH SCIENTIFIC APPARATUS TO DETERMINE SIZE OF WELL BOR, PERMEANBILITY OF PRODUCTING SECTION, AND PIONT OF WATER ENTRY; AND FOR INDCUSTRIAL ACIDIZING SERVICES-NAMELY, CHEMICAL REMOVEAL OF SCALE FORM HEAT EXCHANGE EQUIPMENTEXPIREDFeb 21, 1935

Related trademarks

CopyMark links this record to cited §2(d) serials, the owner's other marks, Nice classes, similar mark names, and recently changed USPTO applications.

Prosecution history

DateCodeEventWhat it means
Nov 3, 1992EXRGEXPIRED SEC. 9
May 8, 1971REN1REGISTERED AND RENEWED (FIRST RENEWAL - 20 YRS)

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