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:
Apr. 20, 1976
Filed:
Jul. 31, 1975
Applicant:
Inventor:
Gary Dale Ellis, Dallas, TX (US);
Assignee:
Dresser Industries, Inc., Dallas, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166315 ; 166181 ;
Abstract
A method of operating a plurality of well packers in a borehole involves selectively retrieving one or more of the well packers on a single trip of the production string or a work string out of the borehole.
Ellis, Gary. (1976). Method for selectively retrieving a plurality of well packers (U.S. Patent No. 3951211). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3951211
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile