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:
Jan. 20, 1976
Filed:
Mar. 18, 1971
Applicant:
Inventors:
Isao Kimura, Suita, JA;
Hidetsugu Habata, Osaka, JA;
Assignee:
Other;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C01b / ;
U.S. Cl.
CPC ...
423345 ; 423440 ;
Abstract
Whisker crystalline silicon carbide is prepared by heating a silicon-containing material for example, elemental silicon, silicon oxides, silicon hydroxides, silicon salts and the like with a halogen and carbon-containing material, such as a mixture of hydrocarbon and chlorine-containing material selected from chlorine, hydrogen chloride, tetrachloromethane and phosgene and halogenated hydrocarbon at a temperature of 800.degree.C or higher under a substantial oxygen and nitrogen gas-free condition.