Patent information:

Patent:Utility 1,225,147
Patented:May 8, 1917
Applied:September 4, 1914
Title:Insulator
Description:Boro-silicate glass
Category:Boron
Assigned to: 

Patentee Information:

LOCKE, Fred M. Victor, NY

Class and subclass information:

Class:501COMPOSITIONS: CERAMIC
Subclass:59CERAMIC 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 halogen or nitrogen Fluorine And boron And aluminum;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:209INSULATORS Sectional, multi-part, composite, or coated;
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