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:
Aug. 22, 1989
Filed:
Nov. 02, 1988
Applicant:
Inventors:
Brock W Watson, Duncan, OK (US);
T Austin Freeman, Duncan, OK (US);
Assignee:
Halliburton Company, Duncan, OK (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
166153 ; 166156 ; 166192 ;
Abstract
The plug set of the present invention comprises an upper plug having a non-rotation insert retained therein and a lower plug having two non-rotation inserts retained therein. The present invention further includes the use of a non-rotation insert in the floating equipment with which the plug set of the present invention is used.
Watson, Brock. (1989). Non-rotating plug set (U.S. Patent No. 4858687). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4858687
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile