Evac Oy
Records under this name other than the patents Evac Oy 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 13 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US RE45,688 | Vacuum sewer system Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 8,944,778 | Liquid Ring Pump and Method for Operating a Liquid Ring Pump Formerly held In force · High confidence | In force | High confidence | |
| US 6,748,973 | Valve Means Term ended Term ended Aug 31, 2022 · High confidence | Term ended | Term ended Aug 31, 2022 | High confidence |
| US 6,470,925 | Vacuum System Term ended Term ended Jul 5, 2021 · High confidence | Term ended | Term ended Jul 5, 2021 | High confidence |
| US 6,305,403 | Aeration apparatus for a vertical riser in a vacuum drainage system Term ended Term ended Sep 16, 2019 · From the USPTO record | Term ended | Term ended Sep 16, 2019 | From the USPTO record |
| US 7,770,241 | Vacuum Sewer System Surrendered on reissue Surrendered on reissue Sep 29, 2015 · Low confidence | Surrendered on reissue | Surrendered on reissue Sep 29, 2015 | Low confidence |
| US 6,223,357 | Vacuum toilet Lapsed on the fee record Ended May 1, 2009 · From the USPTO record | Lapsed on the fee record | Ended May 1, 2009 | From the USPTO record |
| US 4,672,711 | Vacuum extraction apparatus Term ended Term ended no later than Jun 16, 2007 · Low confidence | Term ended | Term ended no later than Jun 16, 2007 | Low confidence |
| US 5,214,807 | Vacuum toilet system Formerly held Term ended Term ended no later than Jun 1, 2013 · Low confidence | Term ended | Term ended no later than Jun 1, 2013 | Low confidence |
| US 5,495,626 | Electrical control device Term ended Term ended no later than Mar 5, 2016 · Low confidence | Term ended | Term ended no later than Mar 5, 2016 | Low confidence |