Patent information:

Patent:Utility 243,782
Patented:July 5, 1881
Applied:May 7, 1881
Title:Compound Substance for Electric Insulators
Description:Composition for hard rubber for insulators
Category:Composition
Assigned to: 

Patentee Information:

MAYALL, Thomas J. Reading, MA

Class and subclass information:

Class:524SYNTHETIC RESINS OR NATURAL RUBBERS -- PART OF THE CLASS 520 SERIES
Subclass:575.5SYNTHETIC RESINS (Class 520, Subclass 1) PROCESSES OF PREPARING A DESIRED OR INTENTIONAL COMPOSITION OF AT LEAST ONE NONREACTANT MATERIAL AND AT LEAST ONE SOLID POLYMER OR SPECIFIED INTERMEDIATE CONDENSATION PRODUCT, OR PRODUCT THEREOF (Class 523, subclass 1) Adding a NRM to a preformed solid polymer or preformed specified intermediate condensation product, composition thereof or process of treating or composition thereof Polymer derived from ethylenic reactants only From hydrocarbon monomer Conjugated diene hydrocarbon monomer Natural rubber;
Class:174ELECTRICITY: CONDUCTORS AND INSULATORS
Subclass:110ARCONDUITS, CABLES OR CONDUCTORS Insulated Rubber;

Known specimens:

None known