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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 = '305') ORDER BY description ASC, date, patent, type

Total of 6 patents found where: Class is '403'; Subclass is '305';

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T / S Patent Date Description Patentee Category Assigned To
U 518,793 April 24, 1894 Lightning Rod and Coupling
Couple with internal threads to screw sections together
SMITH, John W.
Lightning Rod Coupling  
U 297,290 April 22, 1884 Coupling for Lightning Rods
Coupling for spiraling lightning rods such that each end of the rod is screwed into the other
PATEE, Theodorus H.
Lightning Rod Coupling  
U 257,891 May 16, 1882 Lightning Rod Coupling
Coupling for spiraling lightning rods that is strong and can be screwed together
PATEE, Theodorus H.
Lightning Rod Coupling  
U 183,425 October 17, 1876 Improvement in Lightning Rods
Coupling for twisted sheet metal lightning rod composed of hollow end to fit over end of rod and pinned to rod with matching threaded end so coupling parts can be screwed together
SMITH, Charles H.
Lightning Rod Coupling  
U 1,625,266 April 19, 1927 Rod Coupling
Lightning rod made solid with parallel fins and connected by coupling with matching male and female threads crimped over the ends of the rod sections
MAST, Charles O.
Lightning Rod Coupling Mast Lightning Rod Co.
U 78,459 June 2, 1868 Improvement in Lightning Rods
Means of connecting tubular lightning rods and supporting with rubber brackets
Lightning Rod Coupling S. Smith

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