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:
Mar. 08, 1977
Filed:
Mar. 15, 1976
Applicant:
Inventor:
Masaru Takashima, Tokyo, JA;
Assignee:
Aikoh Co., Ltd., Tokyo, JA;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21C / ;
U.S. Cl.
CPC ...
266 45 ; 106 99 ; 266240 ; 266271 ;
Abstract
A stopper plug for a converter tap hole comprising a molding of a refractory material, a fibrous substance and a binder.