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:
Sep. 18, 2001
Filed:
Feb. 08, 1999
Applicant:
Inventors:
Ronald Claus, Welver, DE;
Jürgen Wiete, Melle, DE;
Rüdiger Hahn, Soest, DE;
Stefan Meimeth, Hamm, DE;
Assignee:
Mannesmann AG, Düsseldorf, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D 8/10 ;
U.S. Cl.
CPC ...
C21D 8/10 ;
Abstract
A process for producing precision steel tubes includes cold forming tube blanks, in particular in a plurality of forming steps, with or without an internal tool. In this process, a tube blank made from interstitial free IF steel is used as the starting material.