Patent information:
Patent: | Utility 600,475 |
Patented: | March 8, 1898 |
Applied: | October 23, 1897 |
Title: | Electrical Insulator and Method of Making Same |
Description: | Multiple thin porcelain shells fused together with glaze, ""glaze-filling"" method, U-928 & U-928A. (see patent 601,195) (see patent gb1898-0006235) Patent was owned by the R. Thomas & Sons Co. |
Category: | Insulator |
Assigned to: | |
Patentee Information:
Class and subclass information:
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 174 | INSULATORS; With conductor holding means; Insulator structure; |
Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
Subclass: | 210 | INSULATORS; Sectional, multi-part, composite, or coated; Pin socket type; |
Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
Subclass: | DIG54 | Processes in making insulators; |
Known specimens:
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Drawings:
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