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:
Oct. 28, 2008
Filed:
Jun. 30, 2004
Applicant:
George Telfer, Aberdeen, GB;
Inventor:
George Telfer, Aberdeen, GB;
Assignee:
Specialised Petroleum Group Services Limited, Aberdeen, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A downhole tool for circulating fluid in a well bore. The tool includes an axial inlet and outlet with radial second outlets. A sleeve moves over the second outlets to control circulation of fluid. The sleeve can be selectively locked in an opened or closed configuration while the tool is in tension or compression. Variation of fluid pressure in the work string and stroking the tool move the sleeve between the operating positions. Cyclic operation of the tool is also described.
Telfer, George. (2008). Circulation tool (U.S. Patent No. 7441607). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7441607
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile