| 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 = '131R') ORDER BY date ASC, patent, type |
Total of 5 patents found where: Class is '174'; Subclass is '131R';
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 | 120,457 | October 31, 1871 | Improvement in Lightning Conductors Lightning rod conductor made of wires twisted together and wrapped and twisted around a metal tube (see reissue 7,063) |
PRESTON, Othniel |
Lightning Rod | |
| 1881 | ||||||
| U | 243,630 | June 28, 1881 | Lightning Rod Lightning rod composed of a zinc tube covered with copper surrounded by twisted spiraling tubes of the same combination |
SCHOONMAKER, James H. |
Lightning Rod | 4/5 to H. D. Morse and N. C. Gault |
| 1887 | ||||||
| U | 364,605 | June 7, 1887 | Lightning Rod Lightning rod composed of a hollow core wrapped with small hollow wire which has been wrapped with soft wire and the whole encsed in a copper covering |
SCHOONMAKER, James H. |
Lightning Rod | 2/3 to Henderson D. Morse and Nathaniel C. Gault |
| 1910 | ||||||
| U | 965,207 | July 26, 1910 | Electric Cable Lightning Rod Conductor cable made from straight wires |
MAST, Louis L. |
Lightning Rod | |
| 1915 | ||||||
| U | 1,153,617 | September 14, 1915 | Lightning Rod Lightning rod made of flat metal coiled helically to form a hollow tube and then wires spiralled around the outside |
GOETZ, Julius F. |
Lightning Rod | |
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