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:
Apr. 14, 1987
Filed:
Jul. 22, 1985
Applicant:
Inventors:
Assignee:
Miyazaki Prefecture, Miyazaki, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 39 ; 501 66 ; 501 70 ; 501 72 ; 65 31 ; 156663 ;
Abstract
Porous glass product of the invention comprises about 60 to about 80% by weight of SiO.sub.2, about 7 to about 15% by weight of Al.sub.2 O.sub.3, about 6 to about 12% by weight of B.sub.2 O.sub.3, about 3 to about 7% by weight of Na.sub.2 O and about 3 to 7% by weight of CaO and having pores about 200 to about 10000 nm in size and circular in cross section.