EFCO Inc.
Records under this name other than the patents EFCO Inc. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned. None of them is counted in the 1 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,086,832 | Apparatus for shearing a workpiece such as a metal bar or the like Term ended Term ended no later than May 2, 1998 · Low confidence | Term ended | Term ended no later than May 2, 1998 | Low confidence |
| US 4,240,778 | System for providing for parallelism in fluid powered press or the like Term ended Term ended no later than Dec 23, 2000 · Low confidence | Term ended | Term ended no later than Dec 23, 2000 | Low confidence |
| US 4,515,551 | Closed loop hydraulic/mechanical leveling system Term ended Term ended no later than May 7, 2005 · Low confidence | Term ended | Term ended no later than May 7, 2005 | Low confidence |
| US 4,631,884 | Building system 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 4,799,330 | Sash locking and sealing assembly Term ended Term ended no later than Jan 24, 2009 · Low confidence | Term ended | Term ended no later than Jan 24, 2009 | Low confidence |
| US 4,907,436 | Step forging press Term ended Term ended no later than Mar 13, 2010 · Low confidence | Term ended | Term ended no later than Mar 13, 2010 | Low confidence |
| US 5,018,326 | Building system Term ended Term ended no later than May 28, 2011 · Low confidence | Term ended | Term ended no later than May 28, 2011 | Low confidence |
| US 5,067,293 | Building system 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 5,239,778 | Modular door control apparatus with quick release connection Term ended Term ended no later than Aug 31, 2013 · Low confidence | Term ended | Term ended no later than Aug 31, 2013 | Low confidence |
| US 5,666,838 | Forging press for use with automated multi-station transport system Term ended Term ended no later than Sep 16, 2017 · Low confidence | Term ended | Term ended no later than Sep 16, 2017 | Low confidence |