Patent information:
| Patent: | Utility 411,384 |
| Patented: | September 17, 1889 |
| Applied: | August 4, 1888 |
| Title: | Packing for Steam Pipes |
| Description: | Composition material used to coat the outside of pipes to act as an insulator against heat |
| Category: | Composition |
| Assigned to: | 1/2 to The Gould & Watson Co. |
Patentee Information:
| LEE, Charles Tennant | Boston, MA |
Class and subclass information:
| Class: | 138 | PIPES AND TUBULAR CONDUITS |
| Subclass: | 149 | |
| Class: | 252 | COMPOSITIONS |
| Subclass: | 62 |
Known specimens:
| None known |
Drawings:
Page 1 |