Search the Insulator Patent Reference Library:

Build your search criteria. The patent must match all the values specified.
Select patent types: Utility   Design   Reissue
Patent number:
Date:
Year between: and
Patentee starting with:
City:
State:
Assigned To starting with:
Description containing:
Category:
Class:    Subclass:
Click Search when complete:
SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '83') AND (category.subclass = '257') ORDER BY assigned_to ASC, date, patent, type

Total of 1 patents found where: Class is '83'; Subclass is '257';

View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.

T / S Patent Date Description Patentee Category Assigned To
 Owens-Illinois Glass Co.
U 2,290,138 July 14, 1942 Mechanism for Handling Wire Mesh
Machine for handling wire mesh for glass blocks
BRIDGES, Donald A.
OI Owens-Illinois Glass Co.

Total of 0.00 seconds