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:
Feb. 07, 1984
Filed:
Nov. 30, 1982
Applicant:
Inventor:
Yoshishige Tsumura, Ohta-ku, Tokyo, JP;
Assignees:
Mitsui Aluminium Co., Ltd., Tokyo, JP;
Other;
Primary Examiner:
Int. Cl.
CPC ...
C25C / ;
U.S. Cl.
CPC ...
204 67 ; 204252 ; 204253 ;
Abstract
Refinement of impure aluminum is accomplished by a method which comprises placing the impure aluminum in a molten form as an anode on one side of a porous article impregnated with a fused-salt electrolytic bath, disposing a cathode on the other side of the porous article, and passing direct current between the cathode and the anode.