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. 18, 2023
Filed:
Mar. 03, 2020
Applicant:
Nippon Steel Corporation, Tokyo, JP;
Inventors:
Assignee:
NIPPON STEEL CORPORATION, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 15/06 (2006.01); F16L 15/00 (2006.01);
U.S. Cl.
CPC ...
F16L 15/002 (2013.01); F16L 15/06 (2013.01);
Abstract
A threaded connection for steel pipe is provided that can be made up quickly and appropriately. The threaded connection includes a steel pipe, a steel pipe, and a couplingfor connecting the steel pipesand. The pipe bodiesandof the steel pipesandinclude annular marking groovesand, respectively, formed on the outer peripheries of the pipe bodiesand