Patent information:
| Patent: | Utility 321,646 |
| Patented: | July 7, 1885 |
| Applied: | December 11, 1884 |
| Title: | Electric Wire Insulator |
| Description: | Pin with spars to fit in threaded pin hole |
| Category: | Pin |
| Assigned to: | 1/2 to John E. Smith |
Patentee Information:
| SCHOONMAKER, Edward T. | New York, NY |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 202 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 206 | INSULATORS; With terminal elements; Pin type; Screw or bayonet type; Sockets; |
| Class: | 411 | EXPANDED, THREADED, DRIVEN, HEADED, TOOL-DEFORMED, OR LOCKED-THREADED FASTENER |
| Subclass: | 417 | EXTERNALLY THREADED FASTENER ELEMENT, E.G., BOLT, SCREW, ETC.; Thread or shank structure; Circumferentially interrupted thread; |
Known specimens:
| None known |
Drawings:
Page 1 |