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 = '211') ORDER BY assigned_to ASC, date, patent, type

Total of 5 patents found where: Class is '211';

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 49,633 August 29, 1865 Joints of Lightning Rods
Joint or coupling for tubular lightning rod that slips over the rod and secured with a screw
KING, L.
Lightning Rod Coupling  
D 13,996 June 19, 1883 Design for an Inkstand
Inkstand
GRAY, Lawrence B.
Ink  
U Specimen known 2,609,418 September 2, 1952 Adjustably Mounted Insulator Assembly
Electric fence insulator with hexagon head used with metal mounting bracket (see patent 2,756,958)
BINNS, Jack N.
DUGLE, Thomas E.
ALT, Alvin F.
Electric Fence  
 Ette Investment Co.
U 1,027,711 May 28, 1912 Pole Cross Arm
Metal crossarm with metal pins
ETTE, Charles G.
Pin Ette Investment Co.
 Seyler Mfg. Co.
U 1,722,672 July 30, 1929 Insulator Supporting Bracket
Secondary rack of simple but strong design eliminating rivets.
LUNDELL, Elmer W.
Bracket/secondary Rack Seyler Mfg. Co.

Total of 0.01 seconds