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:
Jul. 28, 1998
Filed:
Feb. 29, 1996
Applicant:
Inventors:
Allan S Richardson, Calgary, AB, CA;
Monte N Wright, Calgary, AB, CA;
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B25B / ;
U.S. Cl.
CPC ...
175 57 ; 81 5716 ; 81 5734 ;
Abstract
A backup tool for engaging a drill pipe body having elongated jaws such that the pressure exerted by the jaws on the drill pipe body is sufficiently distributed to not damage the drill pipe body.