Stone Quality Tools
Records under this name other than patents Stone Quality Tools holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 10 of 10 · Back to Stone Quality Tools
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,981,167 | Method of forming products by low turbulence, uniform cross section investment casting Term ended Term ended no later than Jan 1, 2011 · Low confidence | Term ended | Term ended no later than Jan 1, 2011 | Low confidence |
| US 5,184,425 | Drill bit sharpener Term ended Term ended no later than Feb 9, 2013 · Low confidence | Term ended | Term ended no later than Feb 9, 2013 | Low confidence |
| US 5,196,818 | Wrist mounted magnetic holder Term ended Term ended no later than Mar 23, 2013 · Low confidence | Term ended | Term ended no later than Mar 23, 2013 | Low confidence |
| US 5,317,839 | Four-way diamond file Term ended Term ended no later than Jun 7, 2014 · Low confidence | Term ended | Term ended no later than Jun 7, 2014 | Low confidence |
| US 5,333,767 | Wrist mounted magnetic holder Term ended Term ended no later than Aug 2, 2014 · Low confidence | Term ended | Term ended no later than Aug 2, 2014 | Low confidence |
| US D326,044 | Sharpening tool Term ended | Term ended | ||
| US D342,007 | Drill bit sharpener Term ended | Term ended | ||
| US D360,121 | Diamond file head Term ended | Term ended | ||
| US D360,569 | Diamond file Term ended | Term ended | ||
| US D369,078 | Holster for drill and/or screwdriver bits Term ended | Term ended |