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. 07, 1991
Filed:
Jun. 21, 1990
Applicant:
Inventor:
Masyood Akhtar, San Diego, CA (US);
Assignee:
Johnson Matthey Inc., Valley Forge, PA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03C / ; C03C / ;
U.S. Cl.
CPC ...
501 46 ; 501 22 ;
Abstract
A sealing glass composition comprising, in wt. %, 30-70% lead oxide, 30-60% vanadium oxide, 1-10% phosphorous oxide, 0-30% bismuth oxide, 0.5 to 5% niobium oxide, and 1-15% of at least one oxide from the group consisting of tellurium oxide and selenium oxide.