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:
Apr. 02, 1985
Filed:
Jun. 11, 1984
Applicant:
Inventors:
Nobuyoshi Shimizu, Yamaguchi, JP;
Terunori Fujimoto, Yamaguchi, JP;
Tsuneo Inui, Yamaguchi, JP;
Masatoki Ishida, Yamaguchi, JP;
Assignee:
Toyo Kohan Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C25D / ; C25D / ; C25D / ; C25D / ;
U.S. Cl.
CPC ...
428632 ; 204 29 ; 204 351 ; 204 41 ; 204 442 ; 204 445 ; 20412975 ; 428658 ; 428666 ; 428680 ;
Abstract
Tin free steel having three layers consisting of a bottom layer of metallic chromium, a middle layer of nickel-zinc alloy containing 10 to 90 weight percent of zinc and a top layer of hydrated chromium oxide on a steel base, and a method for the continuous production of this tin free steel which comprises: