| SELECT DISTINCT patent.*, YEAR(date) as year FROM patent LEFT JOIN name ON name.patent = patent.patent AND name.type = patent.type WHERE (residence = 'Minneapolis, MN') ORDER BY date ASC, patent, type |
Total of 8 patents found where: Residence is 'Minneapolis, MN';
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 |
| 1870 | ||||||
| U | 99,184 | January 25, 1870 | Improvement in Lightning Rods and Conductors Lightning rod stamped out of sheet metal into a flat rod with raised edges |
HANKERSON, James W. |
Lightning Rod | 1/2 to Winslow Baker |
| U | 108,354 | October 18, 1870 | Improvement in Combined Eaves Troughs and Lightning Rods Eave trough and water pipe used as conductor for lightning rods |
HANKENSON, James W. BAKER, Winslow |
Lightning Rod Conductor | |
| 1872 | ||||||
| U | 128,617 | July 2, 1872 | Improvement in Lightning Rods Lightning rod made of two stips of zinc curved and joined to form a hollow oval then covered with two strips of copper curved to form a hollow tube around the zinc oval |
HANKENSON, James W. |
Lightning Rod | 1/2 to Mohola Brawley |
| 1886 | ||||||
| U | 336,828 | February 23, 1886 | Insulator Hanger for lamp |
TRAVIS, Charles L. |
Hanger | |
| 1887 | ||||||
| U | 326,268 | May 3, 1887 | Machine for Turning Insulator Pins Machine for cutting the screw thread on wooden pins (missing the 4th page) |
FROST, Lewis D. |
Pin | |
| 1920 | ||||||
| U | 1,361,948 | December 14, 1920 | Insulator Pin with spring wire extending beyond edge of bottom pin hole |
WIDMYER, James L. |
Pin | |
| 1928 | ||||||
| U | 1,675,589 | July 3, 1928 | Insulator Self-tying slot top via separate piece (similar to Ransom patent) |
BABINEAU, Oliver D. |
Self-tying Slot Top | |
| 1964 | ||||||
| U | 3,118,967 | January 21, 1964 | Transposing Device Unusual circular transposition insulator device |
ROSENVOLD, Carl |
Transposition | Transadean Associates, Inc. |
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