| 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 = '235') ORDER BY date ASC, patent, type |
Total of 3 patents found where: Class is '403'; Subclass is '235';
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 |
| 1858 | ||||||
| U | 19,819 | March 30, 1858 | Improvement in Lightning Conductors Lightning rod made of iron wires wrapped with copper sheets |
WHITE, Oren |
Lightning Rod | Henry C. Janes |
| 1874 | ||||||
| U | 152,242 | June 23, 1874 | Improvement in Lightning Rods Coupling to make T-connections for lightning rods |
MOTT, John M. |
Lightning Rod Coupling | |
| 1877 | ||||||
| U | 186,503 | January 23, 1877 | Improvement in Lightning Rod Connector Clips Coupling or connector clip composed of flat metal bent around the adjoining rod with external threads formed on the end so the rod can be screwed onto the clip |
SHOOK, Albert |
Lightning Rod Coupling | |
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