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. 26, 2020
Filed:
Jun. 15, 2017
Applicant:
Nabors Drilling Technologies Usa, Inc., Houston, TX (US);
Inventors:
Ashish Gupta, Houston, TX (US);
Derek Patterson, Houston, TX (US);
Ryan Hause, Houston, TX (US);
Padira Reddy, Richmond, TX (US);
Assignee:
NABORS DRILLING TECHNOLOGIES USA, INC., Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B 15/00 (2006.01); E04F 11/04 (2006.01); F16L 3/26 (2006.01);
U.S. Cl.
CPC ...
E21B 15/00 (2013.01); E04F 11/04 (2013.01); F16L 3/26 (2013.01);
Abstract
A stair tower for a drilling rig is disclosed, the stair tower including a frame, one or more stair flights and platforms positioned within and mechanically coupled to the frame, and a cable tray pivotably coupled to the frame.