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:
Sep. 04, 2012
Filed:
Dec. 10, 2009
Applicants:
David D. Hearn, Houston, TX (US);
Lamar L. Gantt, Anchorage, AK (US);
Howard Gober, Eagle River, AK (US);
Inventors:
David D. Hearn, Houston, TX (US);
Lamar L. Gantt, Anchorage, AK (US);
Howard Gober, Eagle River, AK (US);
Assignee:
ConocoPhillips Company, Houston, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 7/04 (2006.01); E21B 7/08 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and apparatus for forming a window in the wall of a tubular wellbore. In one embodiment described herein, a down hole apparatus for forming a window in the wall of a wellbore utilizing a plurality of tubing string sections and a thick tailpipe positioned at the down hole end of a tubing section.
Hearn, David. (2012). Mill-through tailpipe liner exit and method of use thereof (U.S. Patent No. 8256535). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8256535
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile