Patent information:

Patent:Utility 1,991,469
Patented:February 19, 1935
Applied:June 14, 1933
Title:Building Block
Description:Block with interior partition, separate lid
Category:OI
Assigned to:Owens-Illinois Glass Co.

Patentee Information:

SLAYTER, Games Columbus, OH

Class and subclass information:

Class:52STATIC STRUCTURES (E.G., BUILDINGS)
Subclass:306 
Class:52STATIC STRUCTURES (E.G., BUILDINGS)
Subclass:323CAST IN SITU CONCRETE BARRIER WITH LATERALLY PROJECTING RIB-TYPE SUSTAINER Block-type filler between sustainers Filler of cooperating, void-forming sections;
Class:65GLASS MANUFACTURING
Subclass:58PROCESSES Fusion bonding of glass to a formed part Of parts having opposed facing areas out of contact (e.g., building blocks);
Class:359OPTICS: SYSTEMS (INCLUDING COMMUNICATION) AND ELEMENTS
Subclass:593BUILDING INTERIOR ILLUMINATION WITH REFLECTED, REFRACTED OR PREDETERMINED ANGLE OF ENTRANCE OF OUTSIDE LIGHT Unitary light transmitting member comprising plural reflecting or refracting elements Plural members in series;
Class:D25BUILDING UNITS AND CONSTRUCTION ELEMENTS
Subclass:108 

Known specimens:

None known

Drawings:

Drawing page 1

Page 1