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 = '351') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Class is '313'; Subclass is '351';
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 |
1880 | ||||||
R | 9,484 | November 30, 1880 | Telegraph Insulator Hook with metal case secured to crossarm (see 75,889) |
FINN, John L. |
Hook | Amzi S. Dodd and Chinnock Electric Co. |
1882 | ||||||
U | 262,210 | August 8, 1882 | Combined Insulator, Lightning arrester, and Connector Combined insulator, lightning arrestor and connector |
ECKERT, William ECKERT, Edward SEELY, John |
Lightning Arrestor | |
1883 | ||||||
U | 289,890 | December 11, 1883 | Telegraph and Telephone Conductor Lightning rod insulator system to protect telephone lines from cross talk |
CHAMBERS, Josephus C. |
Lightning Rod Insulator | Vine, Jackson, Gridley |
U | 289,891 | December 11, 1883 | Telegraph and Telephone Cable Lightning rod insulator system to protect telephone lines from cross talk |
CHAMBERS, Josephus C. |
Lightning Rod Insulator | Vine, Jackson, Gridley |
1887 | ||||||
U | 357,050 | February 1, 1887 | Lightning Protector for Electrical Conductors Barbed wire as a conductor for lightning protection placed above the electrical conductors on poles |
VAIL, Jonathan H. |
Lightning | |
1900 | ||||||
U | 652,861 | July 3, 1900 | Overhead Wire Lightning Protector Lightning rod with multiple points (see 637,282) (see reissue 11,759) |
POCHE, Joseph Arthur |
Lightning Rod Point | |
1908 | ||||||
U | 883,303 | March 31, 1908 | Security Lightning Arrester Lightning rod with multiple separate points arranged along the conductor on the edges of the roof |
DRAKE, William E. |
Lightning Rod Point | |
1935 | ||||||
U | 2,011,136 | August 13, 1935 | Protective Apparatus Arcing gap using flux control insulators |
AUSTIN, Arthur O. |
Arc Gap | The Ohio Brass Co. |
Total of 0.00 seconds