| 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 = '313') AND (category.subclass = '268') ORDER BY date ASC, patent, type |
Total of 5 patents found where: Class is '313'; Subclass is '268';
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 |
| 1913 | ||||||
| U | 1,055,322 | March 11, 1913 | Insulator Holes (2) through insulator to pin allows lightning to pass to pin & ground |
DE LONG, Harry A. |
Hole | |
| 1916 | ||||||
| U | 1,198,137 | September 12, 1916 | Insulator Suspension insulator with an outer covering of spun steel or iron. |
LINCOLN, Paul M. |
Suspension | Westinghouse Electric & Mfg. Co. |
| 1918 | ||||||
| U | 1,273,015 | July 16, 1918 | Electric Insulator Suspension made of several parts bolted together |
THOMAS, Percy H. |
Suspension | |
| U | 1,277,304 | August 27, 1918 | Metal Protected High Voltage Insulator Protective shield of metal to protect insulator |
GATI, Bila |
Protective Shield | |
| U | 1,283,651 | November 5, 1918 | Lightning Arrester Lightning arrester with hole through top of insulator similar to U-70. |
BUCHANAN, Sutton R. |
Lightning Arrester/U-70 | |
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