| 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 = '284') ORDER BY date ASC, patent, type |
Total of 4 patents found where: Class is '403'; Subclass is '284';
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 |
| 1882 | ||||||
| U | 258,590 | May 30, 1882 | Coupling for Lightning Rods Coupling made in a hollow metal box that can be crimped during installation to fit around the spiralling sides of the lightning rod |
MUNN, William B. |
Lightning Rod Coupling | |
| 1915 | ||||||
| U | 1,163,181 | December 7, 1915 | Lightning Rod Coupling Coupling for spiral ""star"" shaped lightning rods (see 297,290) |
SCHMITT, Eugene A. |
Lightning Rod Coupling | Cole Brothers Lightning Rod Co. |
| 1919 | ||||||
| U | 1,313,391 | August 19, 1919 | Lightning Rod Coupling Lightning rod coupling for spiralled ""star"" shaped lightning rods to allow the ends to be screwed together |
KRETZER, Sidney D. |
Lightning Rod Coupling | |
| 1931 | ||||||
| U | 1,808,595 | June 2, 1931 | Lightning Rod Coupler Lightning rod coupling with either male or female threads that is square and fits over and crimped to end of rods |
CRIPE, Earnest C. |
Lightning Rod Coupling | |
Total of 0.00 seconds