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. 10, 1979
Filed:
Nov. 21, 1977
Applicant:
Inventors:
John J Grisik, Middletown, OH (US);
David J Wortman, West Chester, OH (US);
Assignee:
General Electric Company, Cincinnati, OH (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
C23C / ; C23C / ;
U.S. Cl.
CPC ...
427253 ; 428667 ;
Abstract
A metallic article of a Fe--Ni base, controlled linear thermal expansion alloy is provided with improved environmental resistance without detriment to mechanical properties through the application to and diffusion into the article surface of Cr with or without other coating metals such as Ni. The coating is preferably applied through the pack diffusion method.