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:
Jul. 03, 1984
Filed:
Apr. 30, 1982
Applicant:
Inventor:
Gerhard Steenken, Berzbuir bei Duren, DE;
Assignee:
Akzona Incorporated, Asheville, NC (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01B / ; B01D / ;
U.S. Cl.
CPC ...
423339 ; 423325 ; 423335 ; 2105021 ; 502409 ;
Abstract
A finely divided silicic acid simultaneously suitable as a filtering auxiliary and as a beer stabilizing agent in the filtration of beer. The acid is particulate, and the particles are of an essentially spherical or spheroidal shape with SiO.sub.2 content of at least 95% and an Na.sub.2 O content of less than 0.25%.