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. 06, 1976
Filed:
Dec. 06, 1972
Applicant:
Inventor:
Fernand Michalon, Saint-Etienne, FR;
Assignee:
Bennes Marrel, Saint-Etienne, FR;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
29191 ; 291914 ;
Abstract
A composite metal sheet is formed by two metal sheets, each having a plain face and a face having raised portions. The faces having the raised portions are juxtaposed to each other and swelled. The metal sheets may also be flat on both surfaces with a metal spacer welded therebetwee. A plastic filler is also contemplated.