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:
Year between: and
Patentee starting with:
Assigned To starting with:
Description containing:
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 = '292') ORDER BY date ASC, patent, type

Total of 5 patents found where: Class is '403'; Subclass is '292';

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
U 113,869 April 18, 1871 Improvement in Lightning Rods
Coupling for tubular lightning rods made of a lap or scarf joint
GAYLORD, Albert A.
Lightning Rod Coupling  
U 152,153 June 16, 1874 Improvement in Lightning Rods
Lightning rod made of sheet metal rolled to form four tubular sections with two of the tubes fitted with dowell pins to connect the rod sections
MOTT, John M.
Lightning Rod  
U 170,377 November 23, 1875 Improvement in Lightning Rods
Coupling for hollow lightning rods composed of a hollow indented plug that fits into indentions in the rod ends
Lightning Rod Coupling  
U 470,514 March 8, 1892 Lightning Conductor
Hollow conductor rod with slip fittings
Lightning Rod  
U Specimen known 1,716,963 June 11, 1929 Insulator
Suspension coupling device (see 1,329,770)
Suspension Jeffery-Dewitt Co.

Total of 0.01 seconds