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. 13, 2010
Filed:
Jul. 22, 2008
Applicants:
H. David Prior, Bethel Park, PA (US);
Howard Winkelbauer, Munhall, PA (US);
Viktor Fischer, Coraopolis, PA (US);
Inventors:
H. David Prior, Bethel Park, PA (US);
Howard Winkelbauer, Munhall, PA (US);
Viktor Fischer, Coraopolis, PA (US);
Assignee:
Harbison-Walker Reeractories Company, Moon Township, PA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
A refractory composition comprising at least 50 weight percent chromic oxide (CrO), as measured by chemical analysis. The composition includes fused chromia-containing grain, powdered chromic oxide and sintered chromia-containing grain. The fused chromia-containing grain and the sintered chromia-containing grain comprise at least 50 weight percent chromia oxide, as measured by chemical analysis.