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. 07, 1978
Filed:
Feb. 09, 1978
Applicant:
Inventors:
Joseph Cohen, Aix en Provence, FR;
Alain Adjemian, Aix en Provence, FR;
Assignee:
Aluminum Pechiney, Gardanne, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01F / ; C01F / ;
U.S. Cl.
CPC ...
423126 ; 423128 ; 423132 ;
Abstract
A method of obtaining alumina of high purity from aluminous mineral containing impurities in which the mineral is attacked with a sulphuric acid liquor followed by separation of a liquid phase from the resulting solid residue comprising
Cohen, Joseph. (1978). Method of obtaining pure alumina by acid attack on aluminous minerals (U.S. Patent No. 4124680). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4124680
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile