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 name ON name.patent = patent.patent AND name.type = patent.type LEFT JOIN category ON category.patent = patent.patent AND category.type = patent.type WHERE (category.class = '65') AND (category.subclass = '248') ORDER BY last_name DESC, first_name, date, patent, type

Total of 9 patents found where: Class is '65'; Subclass is '248';

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
 WEBER, Walter C.
U 2,238,198 April 15, 1941 Insulator Press
Insulator press with multiple molds for pressing glass insulators
WEBER, Walter C.
Press Corning Glass Works
 KRIBS, Seraphin
U 730,665 June 9, 1903 Glass Molding Machine
Insulator Press
KRIBS, Seraphin
Press  
 KRELL, Emil F.
U 303,936 August 19, 1884 Machine for Making Glass Insulators
Press for making insulators
KRELL, Emil F.
Press 3/5 to Orville W. Owen
 DU BOIS, David Irvin
U 2,052,343 August 25, 1936 Plastic Forming Apparatus
Insulator press
DU BOIS, David Irvin
Press Whitall Tatum Co.
 CLIGNET, Georges
U 2,843,973 July 22, 1958 Apparatus Used in Compression Molding of Objects of Glass and Like Material
Insulator press
CLIGNET, Georges
Press Verreries Charbonneaux
 BROOKFIELD, Henry M.
U 596,651 January 4, 1898 Press for Making Insulators
Press for making insulators
BROOKFIELD, Henry M.
Press William Brookfield
 BROOKFIELD, Henry M.
STIVERS, William D.
U 835,235 November 6, 1906 Press for Making Glass Insulators or Similar Articles
Press for making insulators
BROOKFIELD, Henry M.
STIVERS, William D.
Press Henry M. Brookfield
 BROOKFIELD, Henry M.
OLSEN, Sigward
U 1,137,000 April 27, 1915 Fluid Molding Press
Press for making glass insulators
BROOKFIELD, Henry M.
OLSEN, Sigward
Press Brookfield Glass Co.
 BROOKE, Aries P.
U 275,984 April 17, 1883 Press and Mold for Molding Glass
Press for making insulators
BROOKE, Aries P.
Press William Brookfield

Total of 0.01 seconds