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:
May. 17, 1977
Filed:
Aug. 20, 1975
Applicant:
Inventor:
Derrel D Webb, Houston, TX (US);
Assignee:
Houston Engineers, Inc., , TX (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ;
U.S. Cl.
CPC ...
294 863 ;
Abstract
An overshot tool having a cylindrical grapple seated within the bowl of a tubular body, each of the grapple and bowl having longitudinal slots extending from each end thereof, and tangs being carried within the body and extending into the slots to limit rotation of the grapple with respect to the body.