Polylok, Inc.
Records under this name other than the patents Polylok, 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 6 patents it holds.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 7,740,756 | Wastewater filter system Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 9,435,435 | Universal secondary safety system including a riser and screen Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 9,233,323 | T-housing for septic tank Formerly held In force Term ended Sep 17, 2026 · From the USPTO record | In force | Term ended Sep 17, 2026 | From the USPTO record |
| US 7,387,468 | Orifice Shield for Drainage Pipe Term ended Term ended May 13, 2026 · High confidence | Term ended | Term ended May 13, 2026 | High confidence |
| US 6,478,957 | Filtering apparatus for a wastewater treatment tank Formerly held Term ended Term ended Nov 15, 2020 · From the USPTO record | Term ended | Term ended Nov 15, 2020 | From the USPTO record |
| US 6,841,066 | Filtration Device for a Waste Water Treatment System Formerly held Term ended Ended no later than Sep 17, 2020 · Low confidence | Term ended | Ended no later than Sep 17, 2020 | Low confidence |
| US 6,338,797 | Filter device for wastewater treatment system Formerly held Term ended Term ended Jun 13, 2020 · From the USPTO record | Term ended | Term ended Jun 13, 2020 | From the USPTO record |
| US 6,306,299 | Filtration device for a waste water treatment system Formerly held Term ended Term ended Apr 6, 2020 · From the USPTO record | Term ended | Term ended Apr 6, 2020 | From the USPTO record |
| US 6,360,898 | Filtration device for a waste water treatment system Formerly held Term ended Ended no later than Apr 6, 2020 · From the USPTO record | Term ended | Ended no later than Apr 6, 2020 | From the USPTO record |
| US 6,129,837 | Waste water treatment filter including a waste water level control alert device Formerly held Term ended Term ended Nov 6, 2018 · From the USPTO record | Term ended | Term ended Nov 6, 2018 | From the USPTO record |