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:
Mar. 27, 1984
Filed:
Feb. 23, 1983
Applicant:
Inventor:
Michel E Royer, La Balme de Sillingy, FR;
Assignee:
S. T. Dupont, Paris, FR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C22C / ; B32B / ;
U.S. Cl.
CPC ...
428670 ; 428672 ; 428673 ; 428680 ; 368280 ;
Abstract
The present invention relates to a stratified, corrosion-resistant complex comprising a metal substrate and an outer layer made of a noble material. According to the invention the substrate is composed of an alloy having, by weight at least 45% nickel, at least 7% chromium, and at least 7% molybdenum, all the other components of the substrate representing at most 15% of the alloy. The invention is particularly useful for making the backs of watch cases.