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 = '403') AND (category.subclass = '206') ORDER BY date ASC, patent, type

Total of 4 patents found where: Class is '403'; Subclass is '206';

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
 1908
U 887,896 May 19, 1908 Tie Wire Clamp
Cable clamp to hold conductor in top groove of insulator consisting of two flat metal strips with eyelets on each end to receive the cable clamp		 WRIGLEY, George
 Cable Clamp  
 1914
U 1,100,859 June 23, 1914 Line Wire Fastener
Complicated tie wire replacement with cam lever on each side of the insulator to pull the tie wire tight		 WISEMAN, Thomas A.
 Tie Wire 1/2 to Robert T. Wiseman
 1918
U Specimen known 1,257,135 February 19, 1918 Guying-Pole
Cast iron member with three lugs for threadhing through guy cable on either side of the guy strain insulator which eliminates the need for clamps and is easier to install.		 SHULL, Frederick G.
DE RIGHT, Elon J.
 Guy Strain (marketed by the Shull Boltless Clamp Corp.)
 1919
U 1,303,739 May 13, 1919 Lightning Rod
Tubular lightning rod with flat end that is folded around the conductor and secured with a screw		 SWENSON, John S.
STEHLIK, Frank E.
 Lightning Rod  

Total of 0.00 seconds