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:
Nov. 18, 1986
Filed:
Mar. 04, 1985
Applicant:
Inventor:
Chang H Oh, Seoul, KR;
Assignee:
J & L Importers, Inc., King of Prussia, PA (US);
Primary Examiner:
Int. Cl.
CPC ...
A47J / ;
U.S. Cl.
CPC ...
126390 ; 126246 ; 220-31 ; 220 66 ; 99422 ;
Abstract
Improved cookware is disclosed having non-ferrous metal sidewalls and a natural stone bottom central portion. The non-ferrous metal sidewalls preferably are formed of an aluminum alloy having a coefficient of thermal expansion substantially equal to the coefficient of thermal expansion of the natural stone bottom. The natural stone bottom preferably comprises an iron-rich amphibole rock, and in the particularly preferred embodiment comprises hornblende.