Patent information:
| Patent: | Utility 816,271 |
| Patented: | March 27, 1906 |
| Applied: | May 25, 1903 |
| Title: | Process of Producing New Refractory Material for the Manufacture of Insulators and Other Uses |
| Description: | Insulating material made of steatite and water glass known as artificial lava |
| Category: | Misc |
| Assigned to: | |
Patentee Information:
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 122 | CERAMIC COMPOSITIONS; Refractory; Magnesium compound containing; And silicon compound; |
| Class: | 337 | ELECTRICITY: ELECTROTHERMALLY OR THERMALLY ACTUATED SWITCHES |
| Subclass: | 276 | ELECTROTHERMALLY ACTUATED SWITCHES; Fusible element actuated; With arc suppression or extinguishing means; Dielectric filler material or compound (e.g., quartz); |
Known specimens:
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