| 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 = '174') AND (category.subclass = '94R') ORDER BY date ASC, patent, type |
Total of 7 patents found where: Class is '174'; Subclass is '94R';
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 |
| 1867 | ||||||
| U | 61,741 | February 5, 1867 | Improvement in Lightning Rods Lightning rod made from an iron rod with grooves and strips of copper slid into the grooves to make ribs |
JILLSON, Clark |
Lightning Rod | |
| 1868 | ||||||
| U | 74,406 | February 11, 1868 | Improvement in Lightning Rods Lightning rod made with twists and folds |
MUNSON, David |
Lightning Rod | |
| 1870 | ||||||
| U | 99,381 | February 1, 1870 | Improvement in Lightning Rods Square hollow lightning rod connected with square plug that fits inside the ends and secured by crimping with a punch |
WEST, J. D. |
Lightning Rod | |
| U | 100,549 | March 8, 1870 | Improvement in Lightning Rods Lightning rod made of two sheets of metal forming double tubing with flanges and twisted |
MUNSON, David |
Lightning Rod | |
| 1872 | ||||||
| U | 124,264 | March 5, 1872 | Improvement in Lightning Rods Lightning rod made by fastening two metal strips together by indentation, opening to form a star shape, and twising |
GOODWIN, Frederick O. |
Lightning Rod | 1/2 to Frank Goodwin |
| 1874 | ||||||
| U | 152,153 | June 16, 1874 | Improvement in Lightning Rods Lightning rod made of sheet metal rolled to form four tubular sections with two of the tubes fitted with dowell pins to connect the rod sections |
MOTT, John M. |
Lightning Rod | |
| 1888 | ||||||
| U | 375,756 | January 3, 1888 | Lightning Rod Coupling for lightning rods that allows each section to be screwed together |
LAWSHE, Spencer R. |
Lightning Rod Coupling | |
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