Certech, Inc.
Records under this name other than patents Certech, Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 9 of 9 · Back to Certech, Inc.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,203,638 | Method of making injection molded ceramic cup Lapsed on the fee record Ended Mar 20, 2005 · From the USPTO record | Lapsed on the fee record | Ended Mar 20, 2005 | From the USPTO record |
| US 4,576,219 | Molten metals filter apparatus Term ended Term ended no later than Mar 18, 2006 · Low confidence | Term ended | Term ended no later than Mar 18, 2006 | Low confidence |
| US 4,671,498 | Molten metals filter apparatus Term ended Term ended no later than Jun 9, 2007 · Low confidence | Term ended | Term ended no later than Jun 9, 2007 | Low confidence |
| US 4,721,567 | Ceramic pouring filter with tortuous flow paths Term ended Term ended no later than Jan 26, 2008 · Low confidence | Term ended | Term ended no later than Jan 26, 2008 | Low confidence |
| US 5,067,548 | Method of forming a ceramic mold for metal casting Term ended Term ended no later than Nov 26, 2011 · Low confidence | Term ended | Term ended no later than Nov 26, 2011 | Low confidence |
| US 5,460,854 | Impregnated ceramic core and method of making same Term ended Term ended no later than Oct 24, 2015 · Low confidence | Term ended | Term ended no later than Oct 24, 2015 | Low confidence |
| US 5,798,066 | Method of forming hollow ceramic articles Term ended Term ended no later than Aug 25, 2018 · Low confidence | Term ended | Term ended no later than Aug 25, 2018 | Low confidence |
| US D279,379 | Molten metals filter Term ended | Term ended | ||
| US D280,627 | Ladle for aluminum die casting or the like Term ended | Term ended |