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:
Dec. 18, 2001
Filed:
Jul. 24, 2000
Applicant:
Inventor:
Ersan Ilgar, Kirtland, OH (US);
Assignee:
USX Corporation, Pittsburgh, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C25D 3/04 ;
U.S. Cl.
CPC ...
C25D 3/04 ;
Abstract
Chromium electroplating of steel strip, to make tin-free steel, is conducted in an electrolytic bath containing predominantly HCrO,ions rather than the conventional [HCr,O,],or Cr,O,ions. The electrolytic bath is dilute, reducing the amount of chrome-containing waste, and the dilute chromic acid rinse water may be recycled to the electrolytic bath, thus eliminating the waste disposal problem of the rinse water.