Tepco Ltd.
Records under this name other than patents Tepco Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 8 of 8 · Back to Tepco Ltd.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,723,142 | Preformed abrasive articles and method for the manufacture of same Formerly held Term ended Term ended Jun 25, 2022 · From the USPTO record | Term ended | Term ended Jun 25, 2022 | From the USPTO record |
| US 6,866,692 | Preformed abrasive articles and method for the manufacture of same Formerly held Term ended Term ended Jun 5, 2022 · From the USPTO record | Term ended | Term ended Jun 5, 2022 | From the USPTO record |
| US 4,163,650 | Portable electronic precipitator Term ended Term ended no later than Aug 7, 1999 · Low confidence | Term ended | Term ended no later than Aug 7, 1999 | Low confidence |
| US 4,631,918 | Oil-well pumping system or the like Term ended Term ended no later than Dec 30, 2006 · Low confidence | Term ended | Term ended no later than Dec 30, 2006 | Low confidence |
| US 4,715,180 | Hydraulic lift mechanism Term ended Term ended no later than Dec 29, 2007 · Low confidence | Term ended | Term ended no later than Dec 29, 2007 | Low confidence |
| US 4,801,126 | Hydraulically operated lift mechanism Term ended Term ended no later than Jan 31, 2009 · Low confidence | Term ended | Term ended no later than Jan 31, 2009 | Low confidence |
| US 4,848,085 | Oil-well pumping system or the like Term ended Term ended no later than Jul 18, 2009 · Low confidence | Term ended | Term ended no later than Jul 18, 2009 | Low confidence |
| US 5,346,516 | Non-woven abrasive material containing hydrogenated vegetable oils Term ended Term ended no later than Sep 13, 2014 · Low confidence | Term ended | Term ended no later than Sep 13, 2014 | Low confidence |