Patent information:
| Patent: | Utility 2,250,044 |
| Patented: | July 22, 1941 |
| Applied: | April 11, 1939 |
| Title: | Insulator |
| Description: | Multipart insulator with glazed sanded surfaces to improve strength of cap |
| Category: | Multipart |
| Assigned to: | Locke Insulator Corp. |
Patentee Information:
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 137A | INSULATORS; Coated; |
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 127 | CERAMIC COMPOSITIONS; Refractory; Trivalent metal compound (e.g., iron oxide, chromium oxide, trivalent rare earth oxide, etc.) containing; Aluminum compound (e.g., clay, aluminium oxide, etc.); |
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 141 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); |
Known specimens:
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