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:
Sep. 29, 1981

Filed:

Jan. 25, 1980
Applicant:
Inventors:

Walter A Petersen, Ridgewood, NJ (US);

Jonathan A Travis, Oak Ridge, NJ (US);

Frank A Badia, Ringwood, NJ (US);

Assignee:
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; B32B / ;
U.S. Cl.
CPC ...
428675 ; 428676 ; 428680 ; 428681 ; 428925 ; 428926 ; 428940 ;
Abstract

A novel laminated composite material of gold-colored appearance especially suited for, but not limited to, coinage applications has a ferromagnetic core located between sheathing layers of a Cu-Al or Cu-Ni-Al alloy and separated therefrom by layers of copper. Alternative methods involving hot and/or cold rolling techniques are provided for the production of the novel laminates.


Find Patent Forward Citations

Petersen, Walter. (1981). Gold colored laminated composite material having magnetic properties (U.S. Patent No. 4292377). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4292377

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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