| 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 = '285') AND (category.subclass = '397') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Class is '285'; Subclass is '397';
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 |
| 1871 | ||||||
| U | 113,530 | April 11, 1871 | Improvement in Lightning Rods Lightning rods connected with a tubular metal dowel |
KING, Lewis |
Lightning Rod Coupling | |
| U | 113,869 | April 18, 1871 | Improvement in Lightning Rods Coupling for tubular lightning rods made of a lap or scarf joint |
GAYLORD, Albert A. |
Lightning Rod Coupling | |
| U | 118,166 | August 15, 1871 | Improvement in Lightning Rods Coupling for tubular or solid lightning rods that is screwed together and made solid by a ferrule secured with a pin |
STEPHENSON, George A. SUTLIFF, Oliver L. |
Lightning Rod Coupling | |
| 1875 | ||||||
| U | 170,377 | November 23, 1875 | Improvement in Lightning Rods Coupling for hollow lightning rods composed of a hollow indented plug that fits into indentions in the rod ends |
JOHNSON, Isaac |
Lightning Rod Coupling | |
| 1876 | ||||||
| U | 173,962 | February 22, 1876 | Improvement in Couplings for Tubing and Lightning Rods Coupling made of a short hollow piece placed inside both ends of the rod and crimped down through the rod ends to secure the sections |
JOHNSON, Isaac |
Lightning Rod Coupling | Reyburn, Hunter & Co. |
| 1882 | ||||||
| U | 266,075 | October 17, 1882 | Lightning Rod Joint or Coupling Internal coupling for hollow lightning rods that can be pinned to the rod |
BALL, Charles E. |
Lightning Rod Coupling | |
| 1892 | ||||||
| U | 470,514 | March 8, 1892 | Lightning Conductor Hollow conductor rod with slip fittings |
SIMPSON, Harvey |
Lightning Rod | |
| 1909 | ||||||
| U | 938,137 | October 26, 1909 | Lightning Rod Lightning rod coupling not made of copper but maintaining a copper contact |
GOETZ, Julius F. |
Lightning Rod Coupling | |
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