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.

Date of Patent:
Jan. 08, 1985

Filed:

Oct. 20, 1982
Applicant:
Inventors:

Johannes Muller, Frankfurt am Main, DE;

Helmut Kunst, Rodenbach, DE;

Christian Scondo, Hanau, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C21D / ;
U.S. Cl.
CPC ...
148 155 ; 148 28 ;
Abstract

Low cyanide nitriding salt baths which are composed of alkali cyanate and alkali carbonate and used for treating components made of steel and iron produce coatings on the surface of the component in some cases and can lead to problems in the use of the components. A satisfactory surface quality can be obtained from nitriding salt baths which additionally contain 0.5 to 100 ppm of selenium.


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Muller, Johannes. (1985). Salt bath for nitriding iron materials (U.S. Patent No. 4492604). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4492604

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