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. 16, 1995
Filed:
Mar. 02, 1994
Applicant:
Inventors:
Klaus-Dieter Nittel, Frankfurt am Main, DE;
Karl-Heinz Zander, Frankfurt am Main, DE;
Assignee:
Metallgesellschaft Aktiengesellschaft, Frankfurt am Main, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ;
U.S. Cl.
CPC ...
148246 ; 148262 ;
Abstract
In a process for facilitating non-cutting cold working of ferrous materials by application of a phosphate coating, ferrous materials are dipped into a phosphating solution which is free of elements of group VIB of the periodic table which consists of Cr, Mo and W, of nitrogen compounds and preferably also free of nickel and contains