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:
Oct. 10, 1989
Filed:
Jun. 21, 1988
Kagetoshi Onodera, Chiba, JP;
Tatsuya Koizumi, Tokyo, JP;
Toshiyuki Kato, Tokyo, JP;
Junji Sotani, Yokohama, JP;
Masauki Momo, Yokohama, JP;
Shuichi Furuya, Kawasaki, JP;
The Fukura Electric Company, Ltd., Tokyo, JP;
Abstract
A heat transfer tube comprising an inner tube formed of copper or steel, an intermediate layer having a uniform thickness, mounted on the outer periphery of the inner tube and formed of a low melting point metal such as solder, tin or lead and an outer tube of lead or lead alloy mounted on the intermediate layer on the inner tube and metallurgically bonded with the intermediate layer when the low melting point metal is melted.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile