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:
May. 11, 1976
Filed:
Oct. 10, 1974
Applicant:
Inventor:
Shigeharu Nakamura, Otsu, JA;
Assignee:
Nippon Electric Glass Company, Limited, Tokyo, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ;
U.S. Cl.
CPC ...
106 396 ; 65 33 ; 264125 ;
Abstract
A crystallized glass article having a surface pattern like granite, marble or other natural stones, which is formed of a crystallizable glass material and is characterized by the existence of numerous needle-like .beta.-wollastonite crystals in various directions in a surface layer of the article. The crystallized glass article is produced by a heat-treatment of collected small crystallizable glass masses.