| 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 = '428') AND (category.subclass = '676') ORDER BY date ASC, patent, type |
Total of 6 patents found where: Class is '428'; Subclass is '676';
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 |
| 1868 | ||||||
| U | 77,729 | May 12, 1868 | Improvement in Lightning Rods Lightning rod made of wire or iron with a sheet of copper wrapped several times around it |
HALL, William |
Lightning Rod | |
| 1869 | ||||||
| U | 92,551 | July 13, 1869 | Improvement in Lightning Rods Star shaped lightning rod made of 4-edged angle iron with a sheet of copper pressed over the outer surface and then twisted (see reissue 8,429) |
VERMILYA, Leland D. REYBURN, William S. HUNTER, Edmund A. W. |
Lightning Rod | |
| 1872 | ||||||
| U | 123,600 | February 13, 1872 | Improvement in Lightning Rods Lightning rod made of soft iron flat on the back side and fluted on the front side then covered completely with sheet copper |
WELLS, Warren A. HOUSE, George |
Lightning Rod | |
| U | 132,615 | October 29, 1872 | Improvement in Lightning Rods Lightning rod made of hollow or solid iron dipped several times in molten copper to coat entire surface with multiple layers |
YANCEY, Edwin L. |
Lightning Rod | |
| 1876 | ||||||
| U | 171,744 | January 4, 1876 | Improvement in Lightning Rods Lightning rod composed of a copper sheet wrapped around a metal bar with copper wrapped wires on either side and the whole twisted |
SMITH, Charles H. |
Lightning Rod | |
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