Patent information:
| Patent: | Utility 2,389,386 |
| Patented: | November 20, 1945 |
| Applied: | June 17, 1942 |
| Title: | Glazed Ceramic |
| Description: | Compression glaze |
| Category: | Glaze |
| Assigned to: | Westinghouse Electric Corp. |
Patentee Information:
| RUSSELL, JR., Ralston | Pittsburgh, PA |
Class and subclass information:
| Class: | 428 | STOCK MATERIAL OR MISCELLANEOUS ARTICLES |
| Subclass: | 454 | COMPOSITE (NONSTRUCTURAL LAMINATE); Of silicon containing (not as silicon alloy); Sand, clay or mica (silica excluded); |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 137A | INSULATORS; Coated; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 21 | CERAMIC COMPOSITIONS; Glass compositions, compositions containing glass other than those wherein glass is a bonding agent, or glass batch forming compositions; Enamels, glazes, or fusion seals (e.g., raw, fritted, or calcined ingredients); Chemically specified frit compositions; |
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 72 | 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 divalent metal oxide (e.g., oxides of zinc, cadmium, beryllium, alkaline earth metal, magnesium, etc.); |
Known specimens:
| None known |
Drawings:
Page 1 |