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:
Oct. 18, 1988
Filed:
Oct. 10, 1986
Applicant:
Inventors:
Kiyohisa Eguchi, Kawanishi, JP;
Hiroshi Tanaka, Kawanishi, JP;
Tetsuo Yazawa, Ikeda, JP;
Takao Yamaguro, Wada, JP;
Assignee:
Agency of Industrial Science & Technology, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ; C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 39 ; 501 54 ; 501 65 ; 501 67 ;
Abstract
A chemically durable porous glass of which the skeleton mainly comprises SiO.sub.2 -ZrO.sub.2 system glass having a ZrO.sub.2 content of 2 or more wt %, and a process for the production of such glass.