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. 12, 2011
Filed:
Jan. 06, 2009
Applicants:
Christopher L. Drenth, Draper, UT (US);
George Ibrahim, Mississauga, CA;
Anthony Lachance, North Bay, CA;
Inventors:
Christopher L. Drenth, Draper, UT (US);
George Ibrahim, Mississauga, CA;
Anthony Lachance, North Bay, CA;
Assignee:
Longyear TM, Inc., South Jordan, UT (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 19/00 (2006.01); E21B 23/00 (2006.01); E21B 31/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A jointed spearhead assembly can include a base portion that is adapted to be connected to a down-hole object and a spearhead portion having a first end and a second. The second end includes a follower tab with a non-convex first follower interface. The spearhead portion can be pivotally coupled to the base portion.