US Patent 7754633 Chromia-alumina refractory
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Patent abstract
A refractory composition comprising at least 50 weight percent chromic oxide (Cr2O3), 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.
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US Patent 07754633 Chromia-alumina refractory US Patent 7754633 Chromia-alumina refractory
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Patent Number
0775463300
Patent Number
775463300
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Official Website
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Patent Jurisdiction
Patent Number
077546330
Date of Patent
July 13, 2010
0Patent Application Number
121772490
Date Filed
July 22, 2008
0Official Website
Patent Primary Examiner
Edits on 26 Sep, 2022
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Infobox
Is a
Patent Jurisdiction
Patent Number
077546330
Date of Patent
July 13, 2010
0Patent Application Number
121772490
Date Filed
July 22, 2008
0Official Website
Patent Primary Examiner
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US Patent 07754633 Chromia-alumina refractory
Infobox
Is a
Patent jurisdiction
Patent number
07754633
Date of patent
July 13, 2010
Patent application number
12177249
Date Filed
July 22, 2008
Patent primary examiner
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