The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 11, 1978
Filed:
Jul. 19, 1976
Applicant:
Inventor:
Stanley O Hutchison, Bakersfield, CA (US);
Assignee:
Chevron Research Company, San Francisco, CA (US);
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166241 ; 260 / ; 260 4243 ;
Abstract
Low heat conductive frangible centralizers are provided for use in a tubing string in a well and include a central tubular section connectable into the tubing string and having a plurality of radially extending polymerized furfuryl alcohol impregnated cordierite lugs in spaced apart position on the periphery of the tubular section with means to disconnectably connect such lugs on the tubular section.