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:
Mar. 23, 1982
Filed:
Aug. 05, 1980
Applicant:
Inventors:
Charles E Cornwell, Alexandria, VA (US);
Mark Plunguian, Arlington, VA (US);
Assignee:
Other;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C01B / ;
U.S. Cl.
CPC ...
423268 ; 2523 / ; 423267 ; 423337 ; 423335 ;
Abstract
Silica fume, the by-product from the manufacture of silicon and ferrosilicon alloys, is dispersed in water and the aqueous dispersion is stabilized to retain its fluidity and redispersibility by treatment with an acid or with a chelating agent.