Spontex
Records under this name other than the patents Spontex 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 D550,913 | Household sponge Term ended Term ended Sep 11, 2021 · From the USPTO record | Term ended | Term ended Sep 11, 2021 | From the USPTO record |
| US D514,761 | Sponge Term ended Term ended Feb 7, 2020 · From the USPTO record | Term ended | Term ended Feb 7, 2020 | From the USPTO record |
| US D506,299 | Sponge Term ended Term ended Jun 14, 2019 · From the USPTO record | Term ended | Term ended Jun 14, 2019 | From the USPTO record |
| US 4,154,675 | Ion exchange processes using cellulosic materials Formerly held Term ended Term ended no later than May 15, 1999 · Low confidence | Term ended | Term ended no later than May 15, 1999 | Low confidence |
| US 4,218,490 | Functional proteins Formerly held Term ended Term ended no later than Aug 19, 2000 · Low confidence | Term ended | Term ended no later than Aug 19, 2000 | Low confidence |
| US 4,355,067 | Scouring material Formerly held Term ended Term ended no later than Oct 19, 2002 · Low confidence | Term ended | Term ended no later than Oct 19, 2002 | Low confidence |
| US 4,645,699 | Pile cleaning material and needling method of making same Term ended Term ended no later than Feb 24, 2007 · Low confidence | Term ended | Term ended no later than Feb 24, 2007 | Low confidence |
| US 4,856,134 | Abrasive pad, which can substitute for a steel wool pad, and/or scouring pad and process for producing same Formerly held Term ended Term ended no later than Aug 15, 2009 · Low confidence | Term ended | Term ended no later than Aug 15, 2009 | Low confidence |
| US 4,893,369 | Hand-held utensil for surface cleaning, mopping and the like Term ended Term ended no later than Jan 16, 2010 · Low confidence | Term ended | Term ended no later than Jan 16, 2010 | Low confidence |
| US 4,940,631 | Cellular cellulosic wiping material Term ended Term ended no later than Jul 10, 2010 · Low confidence | Term ended | Term ended no later than Jul 10, 2010 | Low confidence |