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:
May. 11, 1976
Filed:
Jul. 30, 1973
Applicant:
Inventors:
Earl P Moore, Jr, Hockessin, DE (US);
Ginter Vurlicer, Newark, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ;
U.S. Cl.
CPC ...
2523 / ; 1062 / ; 252317 ;
Abstract
Stable sols of positively charged colloidal silica are prepared from a water soluble basic aluminum salt and a negatively charged colloidal silica sol by introducing into the reaction mixture a carbonate, bicarbonate or phosphate salt which is soluble in the reaction mixture or a mixture of any of them.
Moore, Jr, Earl. (1976). Process for preparing stable positively charged alumina coated silica (U.S. Patent No. 3956171). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/3956171
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile