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:
May. 01, 2012
Filed:
Jun. 19, 2008
Applicant:
Mynor J. Castro, Chandler, AZ (US);
Inventor:
Mynor J. Castro, Chandler, AZ (US);
Assignee:
Offshore Manufacturing & Design, LLC, Chandler, AZ (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 17/10 (2006.01);
U.S. Cl.
CPC ...
Abstract
A device () is for centering a drill casing () within a wellbore (). The device () includes a generally tubular body () having an outer surface () facing the wellbore (). A plurality of protrusions () is disposed on the outer surface () along a line (). A gap region between the protrusions () along the line ().