Patent information:
| Patent: | Utility 1,528,908 |
| Patented: | March 10, 1925 |
| Applied: | March 19, 1923 |
| Title: | Process of Forming Ceramic Products |
| Description: | Process of adding reagents to accelerate hardening of the clay to reduce the time body is in mold |
| Category: | Manufacturing |
| Assigned to: | 1/2 to Frank H. Riddle |
Patentee Information:
Class and subclass information:
| Class: | 501 | COMPOSITIONS: CERAMIC |
| Subclass: | 146 | CERAMIC COMPOSITIONS; Clay containing (e.g., porcelain, earthenware, etc.); Clay pretreatment; Chemical pretreatment; |
| Class: | 209 | CLASSIFYING, SEPARATING, AND ASSORTING SOLIDS |
| Subclass: | 5 | |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | 299 | MECHANICAL SHAPING OR MOLDING TO FORM OR REFORM SHAPED ARTICLE; Shaping against forming surface (e.g., casting, die shaping, etc.); |
| Class: | 264 | PLASTIC AND NONMETALLIC ARTICLE SHAPING OR TREATING: PROCESSES |
| Subclass: | 349 | MISCELLANEOUS; |
| 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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