Simplex Ceiling Corp.
Records under this name other than patents Simplex Ceiling Corp. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
Showing 1 to 7 of 7 · Back to Simplex Ceiling Corp.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 4,439,973 | Clip for metal planks Term ended Term ended no later than Apr 3, 2004 · Low confidence | Term ended | Term ended no later than Apr 3, 2004 | Low confidence |
| US 4,537,116 | Air drape Term ended Term ended no later than Aug 27, 2005 · Low confidence | Term ended | Term ended no later than Aug 27, 2005 | Low confidence |
| US 4,549,375 | Ceiling construction Term ended Term ended no later than Oct 29, 2005 · Low confidence | Term ended | Term ended no later than Oct 29, 2005 | Low confidence |
| US 4,611,444 | Sanitary acoustical ceiling Term ended Term ended no later than Sep 16, 2006 · Low confidence | Term ended | Term ended no later than Sep 16, 2006 | Low confidence |
| US 4,696,141 | Suspended ceiling having a concealed suspension grid and lay-in metal panels supported thereon Term ended Term ended no later than Sep 29, 2007 · Low confidence | Term ended | Term ended no later than Sep 29, 2007 | Low confidence |
| US 4,760,677 | Suspended ceiling having a concealed suspension grid and lay-in metal panels supported thereon Formerly held Term ended Term ended no later than Aug 2, 2008 · Low confidence | Term ended | Term ended no later than Aug 2, 2008 | Low confidence |
| US 4,773,194 | Graffiti-resistant ceiling tile Term ended Term ended no later than Sep 27, 2008 · Low confidence | Term ended | Term ended no later than Sep 27, 2008 | Low confidence |