Patent information:

Patent:Utility 1,556,570
Patented:October 6, 1925
Applied:February 2, 1925
Title:Impregnated Wood and Process of Treating Wood
Description:Treating wood pins and the like under high temperature with Montan wax and a solvent that penetrates the grain and protects it from weather and decay
Category:Pin
Assigned to:Montan, Inc.

Patentee Information:

COOLIDGE, Joseph R. Brookline, MA

Class and subclass information:

Class:428STOCK MATERIAL OR MISCELLANEOUS ARTICLES
Subclass:541IMPREGNATED NATURALLY SOLID PRODUCT (E.G., LEATHER, STONE, ETC.) Wood timber product (e.g., piling, post, veneer, etc.);
Class:238RAILWAYS: SURFACE TRACK
Subclass:83 
Class:238RAILWAYS: SURFACE TRACK
Subclass:84 
Class:427COATING PROCESSES
Subclass:441IMMERSION OR PARTIAL IMMERSION Cellulosic base Wood base Creosote, wax, oil, asphalt, or bitumen containing coating;

Known specimens:

None known

Drawings:

Drawing page 1

Page 1