Patent information:
| Patent: | Utility 1,589,617 |
| Patented: | June 22, 1926 |
| Applied: | March 1, 1923 |
| Title: | Process for Preparing Material for Ceramic Articles |
| Description: | Vacuum pugging after mixing dry ingredients with exact percent water needed |
| Category: | Vacuum |
| Assigned to: | The Ohio Brass Co. |
Patentee Information:
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 149 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); Clay pretreatment; Water pretreatment; |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | DIG39 | Treatment of clay before and after molding; |
Known specimens:
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