Cominco, Ltd.
Records under this name other than patents Cominco, Ltd. holds now: patents now held by others, patents whose terms have ended, and its applications, pending or abandoned.
| Patent | Title | Status | Expires | Confidence |
|---|---|---|---|---|
| US 6,886,439 | Paper Elimination in the Production of Battery Plates Formerly held Term ended Term ended Apr 6, 2021 · High confidence | Term ended | Term ended Apr 6, 2021 | High confidence |
| US 7,007,579 | Paper Elimination in the Production of Battery Plates Formerly held Term ended Term ended Feb 2, 2021 · High confidence | Term ended | Term ended Feb 2, 2021 | High confidence |
| US 6,569,268 | Process and alloy for decorative galvanizing of steel Formerly held Term ended Term ended Oct 16, 2020 · From the USPTO record | Term ended | Term ended Oct 16, 2020 | From the USPTO record |
| US 6,280,795 | Galvanizing of reactive steels Formerly held Term ended Term ended Dec 2, 2019 · From the USPTO record | Term ended | Term ended Dec 2, 2019 | From the USPTO record |
| US 6,228,905 | Drop forming method and sulphur polymer concrete process Formerly held Lapsed on the fee record Ended May 8, 2013 · From the USPTO record | Lapsed on the fee record | Ended May 8, 2013 | From the USPTO record |
| US 6,103,204 | Selective bioleaching of zinc Formerly held Lapsed on the fee record Ended Aug 15, 2012 · From the USPTO record | Lapsed on the fee record | Ended Aug 15, 2012 | From the USPTO record |
| US 3,932,284 | Barrel shaped mercury separator with spoked agitator Term ended Term ended no later than Jan 13, 1996 · Low confidence | Term ended | Term ended no later than Jan 13, 1996 | Low confidence |
| US 3,961,752 | Method and apparatus for dust control treatment Term ended Term ended no later than Jun 8, 1996 · Low confidence | Term ended | Term ended no later than Jun 8, 1996 | Low confidence |
| US 3,964,901 | Production of copper and sulfur from copper-iron sulfides Term ended Term ended no later than Jun 22, 1996 · Low confidence | Term ended | Term ended no later than Jun 22, 1996 | Low confidence |
| US 3,966,568 | Electrowinning of gallium Term ended Term ended no later than Jun 29, 1996 · Low confidence | Term ended | Term ended no later than Jun 29, 1996 | Low confidence |