| 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 = '233') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '403'; Subclass is '233';
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 |
| 1910 | ||||||
| U | 964,297 | July 12, 1910 | Lightning Rod Upright Lightning attached to conductor with bracket formed out of sheet metal and bolted to rod |
MOORE, George J. |
Lightning Rod | |
| 1913 | ||||||
| U | 1,070,948 | August 19, 1913 | Cable and Tube Coupling Lightning rod coupling formed from sheet metal with flaps that fold over the conductor |
DODD, Thomas W. |
Lightning Rod Coupling | |
| 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 | |
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