Alberta Ltd.
Records under this name other than patents Alberta 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 8,257,580 | Dry, stackable tailings and methods for producing the same Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 7,985,333 | System and method of separating bitumen from tar sands Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 7,909,989 | Method for obtaining bitumen from tar sands Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 8,864,982 | Methods for obtaining bitumen from bituminous materials Formerly held In force · From the USPTO record | In force | From the USPTO record | |
| US 8,663,462 | Methods for obtaining bitumen from bituminous materials Formerly held Lapsed on the fee record Ended Mar 4, 2026 · From the USPTO record | Lapsed on the fee record | Ended Mar 4, 2026 | From the USPTO record |
| US 8,101,067 | Methods for obtaining bitumen from bituminous materials Formerly held Term ended Ended no later than Oct 12, 2025 · From the USPTO record | Term ended | Ended no later than Oct 12, 2025 | From the USPTO record |
| US 6,919,682 | Magnesium barium thioaluminate and related phosphor materials Formerly held Term ended Term ended Jul 28, 2021 · From the USPTO record | Term ended | Term ended Jul 28, 2021 | From the USPTO record |
| US 6,764,404 | Drive shaft coupling device Term ended Term ended Jul 10, 2021 · From the USPTO record | Term ended | Term ended Jul 10, 2021 | From the USPTO record |
| US D503,210 | Set of alphabetical sparklers Term ended Term ended Mar 22, 2019 · From the USPTO record | Term ended | Term ended Mar 22, 2019 | From the USPTO record |
| US D437,911 | Golf mat Term ended Term ended Feb 20, 2015 · From the USPTO record | Term ended | Term ended Feb 20, 2015 | From the USPTO record |