Excel Mining Systems, Inc.
Records under this name other than patents Excel Mining Systems, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Back to Excel Mining Systems, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 8,007,206 | Low profile cable bolt headers Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 4,122,681 | Mine roof support assembly Term ended Term ended no later than Oct 31, 1998 · Low confidence | Term ended | Term ended no later than Oct 31, 1998 | Low confidence |
| US 4,221,290 | Dual compartmented container Term ended Term ended no later than Sep 9, 2000 · Low confidence | Term ended | Term ended no later than Sep 9, 2000 | Low confidence |
| US 4,305,687 | Anchoring system for rock bolts Term ended Term ended no later than Dec 15, 2001 · Low confidence | Term ended | Term ended no later than Dec 15, 2001 | Low confidence |
| US 4,342,527 | Support assembly for underground mine and tunnel roofs Term ended Term ended no later than Aug 3, 2002 · Low confidence | Term ended | Term ended no later than Aug 3, 2002 | Low confidence |
| US 4,347,020 | Mine roof bolt assembly Term ended Term ended no later than Aug 31, 2002 · Low confidence | Term ended | Term ended no later than Aug 31, 2002 | Low confidence |
| US 4,437,795 | Mine roof anchor assembly Term ended Term ended no later than Mar 20, 2004 · Low confidence | Term ended | Term ended no later than Mar 20, 2004 | Low confidence |
| US 4,483,645 | Combination expansion shell and resin secured mine roof anchor assembly Term ended Term ended no later than Nov 20, 2004 · Low confidence | Term ended | Term ended no later than Nov 20, 2004 | Low confidence |
| US 4,498,815 | Rock formation support plate Term ended Term ended no later than Feb 12, 2005 · Low confidence | Term ended | Term ended no later than Feb 12, 2005 | Low confidence |
| US 4,534,679 | Combination expansion shell and resin secured mine roof anchor assembly Term ended Term ended no later than Aug 13, 2005 · Low confidence | Term ended | Term ended no later than Aug 13, 2005 | Low confidence |