Patent information:
| Patent: | Utility 1,091,678 |
| Patented: | March 31, 1914 |
| Applied: | May 19, 1909 |
| Title: | Insulating Composition |
| Description: | Boro-silicate glass |
| Category: | Boron |
| Assigned to: |
Patentee Information:
| LOCKE, Fred M. | Victor, NY |
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 66 | CERAMIC 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; |
| Class: | 51 | ABRASIVE TOOL MAKING PROCESS, MATERIAL, OR COMPOSITION |
| Subclass: | 308 | |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 143 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); And flint or feldspar; |
Known specimens:
| Number: |  |