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:
Jan. 21, 1986
Filed:
Feb. 03, 1984
Applicant:
Inventors:
William T Tapp, Yorktown, TX (US);
William M Roberts, Deer Park, TX (US);
Assignee:
Elder, Inc., Yorktown, TX (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B / ; E21B / ;
U.S. Cl.
CPC ...
166123 ; 166181 ; 166387 ;
Abstract
A retrievable subsurface well conduit engaging apparatus having releasable engaging means which are movable outwardly to engage a well conduit and which may be released by up and down movement of an operating means. Locking means maintains the well conduit engaging means in engagement with the well conduit until the operating means is moved upwardly which releases a coupling means from the locking means and allows disengagement of the apparatus.