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:
Mar. 14, 2006
Filed:
Sep. 16, 2003
Applicant:
William R. Holland, Houston, TX (US);
Inventor:
William R. Holland, Houston, TX (US);
Assignee:
Hydril Company, L.P., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 33/038 (2006.01);
U.S. Cl.
CPC ...
Abstract
A fastener for coupling blowout preventers in a stack including an elongated shaft having a first end and a second end, and a head disposed proximate the first end of the elongated shaft and adapted to be retained in a recess in a first blowout preventer. The second end of the elongated shaft is adapted to be coupled to a second blowout preventer.