Patent information:

Patent:Utility 1,510,521
Patented:October 7, 1924
Applied:September 16, 1916
Title:Glass
Description:Boro-silicate glass
Category:Boron
Assigned to: 

Patentee Information:

LOCKE, Fred M. Victor, NY

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:66CERAMIC COMPOSITIONS Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions Silica containing 40 percent - 90 percent by weight silica And boron And aluminum;

Known specimens:

None known