Patent information:
| Patent: | Utility 974,672 |
| Patented: | November 1, 1910 |
| Applied: | December 23, 1907 |
| Title: | Insulator |
| Description: | Suspension insulator |
| Category: | Suspension |
| Assigned to: | The Ohio Brass Co. |
Patentee Information:
| JOHNSTON, Robert M. | Mansfield, OH |
Class and subclass information:
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 150 | INSULATORS; Multiple insulator assemblies; Strings and stacks; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 30 | WITH FLUIDS OR VACUUM; Insulators; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 186 | INSULATORS; With terminal elements; Plural; Caps; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 189 | INSULATORS; With terminal elements; Cap type; Plastic material adhered; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 200 | INSULATORS; With terminal elements; Pin type; With thimble in socket; |
| Class: | 174 | ELECTRICITY: CONDUCTORS AND INSULATORS |
| Subclass: | 209 | INSULATORS; Sectional, multi-part, composite, or coated; |
| Class: | 361 | ELECTRICITY: ELECTRICAL SYSTEMS AND DEVICES |
| Subclass: | 107 | SAFETY AND PROTECTION OF SYSTEMS AND DEVICES; With specific transmission line (e.g., guarded); |
Known specimens:
| None known |
Drawings:
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