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:
Sep. 12, 1989
Filed:
Feb. 12, 1988
Applicant:
Inventors:
Hans-Joachim Koschlig, Bochum, DE;
Engelbert Overkott, Gevelsberg, DE;
Assignee:
Dr. C. Otto Feuerfest GmbH, , DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B / ;
U.S. Cl.
CPC ...
501123 ; 501 88 ; 501133 ; 501154 ;
Abstract
Silica brick with a quartz grain structure that can be detected in the matrix and is converted to cristobalite and/or tridymite, where the quartz grain structures are surrounded by a thin layer of tridymite formed from a silica gel and/or silica sol and consisting of fine tridymite crystals matted together.